China's mold industry will be the high road by car dies

China's mold is the only way for enterprises to develop high-end line of automotive die.
According to statistics, last year China's key enterprises reached nearly 110 die, which accounts for about 37% of stamping dies, these data demonstrated a strong automotive mold manufacturing country, China has become a fact. However, the development of China's automotive die but not so ideal, high-end automotive mold enterprise technology is not up to the level of technological innovation capability, inadequate new mold R & D capabilities, etc. The reason for this series are restricting the development  tapping tee electrofusion mould of China's automobile mold industry leading automobile companies can not produce molds and dies to match the high-end market, high-end car manufacturers need to mold must also rely on imports. The domestic high-end enterprise occasionally die because of lack of production load, had to change the initial market positioning away seize, the low-end market. Although the survival of the enterprise to solve the problem, but because of the low-end market, low profit margins, leading to invest R & D and technological innovation rarely, under certain circumstances, a vicious cycle in which companies did not enter a virtuous cycle of development , the domestic mold companies are more high-end cars, making it faces increasingly fierce competition in the market. In addition to the domestic high-end automotive mold companies to meet the traditional mold enterprise Q (quality), C (cost), T (period) requirements, mold development and electrofusion coupling mould  application of new technologies will become the focus of the future direction of domestic mold industry development. Multi-position progressive die and precision die represents the development direction of stamping dies, precision and demanding life, mainly for the electronic information industry, automotive, instrumentation, electrical appliances and other facilities. Both mold, the country has fairly basic, and has the introduction of foreign technology and equipment, the products of individual enterprises has reached the world level, but most companies are still a large gap, the total is also in short supply, import more.
For ultra large scale integrated circuit  Bridge Bend mould package for more than 100 and a lead foot gap 0.2mm below the lead frame package for the accuracy of 5mm or more matching precision miniature connector for 1.6mm below the core support and micro-motors for the CRT electron gun and supporting the development of precision molds is a top priority.

Mould market demand is still the focus of technological development

Today, the mold industry, the rise of the technology boom , to further accelerate the reform of China's mold industry update path, and follow the mold industry restructuring led the entire industry into a new round of production dynasty , combined with high-tech mold production technology, enterprises can be more accurate, more efficient completion of  tapping tee electrofusion mould product design and production process , close to the international market pace .
China is a big country , but also a big consumer of industrial products , mold development as one of the essential modern industrial equipment, wide range of applications . At present , China's mold industry market is very large, and each year was 15% to 20 % trend growth , mainly  chinese mould due to the development of China's automobile , home appliances , IT industry , packaging , building materials, daily necessities , such as mold large user industry. Unfortunately, although the domestic market demand remains high demand for mold , but because of mold technology compared with the current international level there are still some gaps, resulting in mold manufacturing technology behind many of the independent development of the industry has been greatly restricted , some of the high-tech mold is still dependent on imports , coupled with advanced technology companies in recent years, more emphasis on the protection of the mold which caused some enterprises to introduce technical difficulties .
For this reason, and to improve the  PE Electrofusion Pipe Fitting level of China's mold industry Manufacturing became imperative thing. With the continuous development of the total economy and industrial products and technology, resulting in all walks of life for a growing demand for molds , technical requirements are also increasing focus on developing high-tech mold and constantly improve the level of standardization of the mold became the "second five" development priorities. Especially for tools need to rely on high-tech products as precision die mold industry , such as the computer's chassis , connectors , and many components in the manufacture of precision plastic mold and precision stamping dies , are electronic products can not be acquired equipment.

Auto Mould is an inevitable trend of high-end enterprise development

Last year , according to media statistics , China's mold of key enterprises reached nearly 110 , which accounts for about 37% of stamping dies , these data demonstrated a strong automotive mold manufacturing country , China has become a fact . However, the development of China's automotive die but not so ideal , high-end automotive mold enterprise technology is not up to the level of technological innovation capability , inadequate new mold R & D capabilities , etc. The reason for this series are restricting the development of China's automobile mold industry leading automobile companies can not produce molds and dies to match the high-end market , high-end car manufacturers need to mold must also rely on imports. The domestic high-end  Male/ Female Tee mould enterprise occasionally die because of lack of production load , had to change the initial market positioning away seize , the low-end market . Although the survival of the enterprise to solve the problem , but because of the low-end market, low profit margins , leading to invest R & D and technological innovation rarely , under certain circumstances, a vicious cycle in which companies did not enter a virtuous cycle of development , the domestic mold companies are more high-end cars , making it faces increasingly fierce competition in the market . Experts said that the domestic high-end automotive mold companies in addition to the traditional mold of enterprises to meet Q ( quality ), C ( cost ), T ( period ) requirements, mold development and application of new technologies will become the focus of future development of China 's mold industry direction .
Multi-position progressive die and precision die represents the development direction of stamping dies , precision  Bridge Bend mould and demanding life , mainly for the electronic information industry , automotive , instrumentation , electrical appliances and other facilities. Both mold , the country has fairly basic , and has the introduction of foreign technology and equipment, the products of individual enterprises has reached the world level, but most companies are still a large gap , the total is also in short supply , import more . For ultra large scale integrated circuit package for more than 100 and a lead foot gap 0.2mm below the lead frame package for the accuracy of 5mm or more matching precision miniature connector for 1.6mm below the core support and micro-motors for the CRT electron gun tapping tee electrofusion mould  and supporting the development of precision molds is a top priority .
Our high-end line of automotive die mold enterprise is the only way to development , market demand and also contributed to the development of other large and medium-sized stamping supporting multi-position progressive die should also focus on the development .

Temperature extrusion die selection and use principles

Warm extrusion molding technology at home and abroad in recent years, the rapid development of a non- cutting precision plastic forming process , and complete the crystallization temperature ( steel materials 200-850 ℃) temperature range between room temperature and heated . High -temperature extrusion parts strength , rigidity, light weight, accuracy and surface roughness almost in machining. Temperature extrusion die is to ensure the quality of the important temperature extrusion process equipment , selection and use of its principles are: 1 , mold material extrusion die temperature during  Male/ Female Tee mould the operating cycle , due to the high temperature , high pressure and alternating loads , requiring mold steel should have strength, high hardness , toughness , wear resistance and red hardness and good . Specifically:
1 ) low temperature (200-400 ℃) when pressed , the selection 3Cr3Mo3W2V, W18Cr4V, W6Mo5Cr4V2 so on. 2 ) medium temperature (400-500 ℃) extrusion , the choice 4Cr5MoSiV, 4Cr5W2SiV, 5CrNiMo so on. 3 ) high temperature (500 ℃ above ) extrusion , the choice 5Cr4Mo3SiMnVAl, 6Cr4Mo3Ni2WV, 3Cr3Mo3W2V, 9Cr6W3Mo2V2.2, mold structure in the mold structure design, mold structure should be considered as much as possible in favor of the metal flow , die each part of the force uniform, fully consider cross-sectional shape of the cavity , the working parts should be smooth connection , try to avoid sharp corners , the stress concentration caused by the source slit to prevent cracking heat treatment and extrusion process . 3, the surface 2 inch pvc coupling mould  toughening treatment should be reasonable toughening treatment and surface hardening, the mold to get a good overall toughness and high surface hardness, wear resistance and mucosal performance , improve die life . If , Cr4W2Mo2V warm extrusion die technology: heat deformation normalizing (960 ℃, insulation 1.5h) + ball isothermal annealing (900 ℃, insulation 5h) + temperature quenching (1000-1050 ℃, oil quenched ) + temperature back fire (560-580 ℃, 1.5h) + SCN triple penetration process for review toughening treatment . Again 3Cr2W8V extrusion die temperature : 1100 ℃ heat insulation baked with pre-cooling 2-3min, and then placed in 50% K2NO3 +50% Na2NO3 salt bath , 390 ℃ insulation 0.5h baked cooled to room temperature isothermal quenching 560 ℃ × 2h tempering twice. 4 , friction reduction and lubrication method in direct contact with the blank mold surface , the mold surface blank or brush tapping tee electrofusion mould  invasion lubricants to reduce friction , can also improve thermal conductivity. Before dipping rough and can reduce heating oxidation and decarbonization . Production found : Graphite + boron oxide , boron oxide + molybdenum disulfide , graphite, i.e., water or oil , graphite, molybdenum disulfide + + oleic acid + alumina + silica sand and lubricants , can achieve good lubrication.

Status and Development of rapid economic mold

The main problem areas of rapid economic mold problems are: rapid tooling our professional business is relatively small, the impact of China's own brand of new product development trial . Development of new models such as cars , most of them choose foreign OEMs new models fast trial enterprises, or foreign country , mainly because of domestic enterprises with less rapid economic mold or development is not strong enough , the impact of the automobile OEMs selection. Second, China's rapid tooling  Male/ Female Tee mould companies , mostly small and medium enterprises , self-development capacity is weak, although technically close to the international advanced level , but is limited in terms of investment in technological innovation capability .
The gap with the international advanced level in recent years , China's rapid economic mold technology has developed rapidly, especially the popularity of CNC machining equipment , mold design and quality has been greatly improved , can substitute imports. But compared with  Plastic Adapter Union mould foreign advanced level of rapid tooling technology , there are still some gaps .
Automotive panel die quickly after years of technical accumulation , as well as new technologies, new materials, grafting, its manufacturing level and speed has been significantly improved . Compared with the international advanced level the gap is mainly reflected in : the international advanced automotive panel die manufacturing enterprise is a fast rapid tooling technology, auto body technology in a new product for automotive OEMs to develop, implement from rapid tooling , stamping welding train service. Domestic automobile cover rapid tooling manufacturing enterprises. Only assume rapid tooling manufacturing and stamping, die quickly lead to domestic enterprises lack of live sources , to improve the overall level slower . Plus car cover rapid mold manufacturing enterprises , mostly SMEs , investment capacity is weak, the introduction of advanced high-speed processing equipment and line testing equipment for less , it can not ensure the rapid development of high-end products.
Since the emergence of rapid prototyping technology , after 20 years of development , RP technology has entered a mature stage of steady development , there have been dozens of different apping tee electrofusion mould  processes. Our rapid prototyping technology is not bad . Compared with the international advanced level , the main difference lies in product research and commercialization conversion is slow, as China's current rapid prototyping rapid tooling technology conversion means for large stamping dies quickly oversized rapid prototyping techniques and equipment has not yet appeared . I plant a cement mold, cover mold and other products undergo strict quality certification system , trustworthy.

China Mould market is expected to develop a large flow of commerce shall be bullish pattern

A wide assortment of hardware products, China has gradually become the world's largest metal processing and exporting countries, and has become one of the world's largest producer of metal, has a vast potential market and the consumer. International Mould & Metal & Plastic Industry Suppliers Association mold market is an important part of China's hardware chinese mould  industry, the five-time major changes are properly deal with our domestic and international environment for development, accelerate critical period to achieve the target of building a moderately prosperous society, but also China mold manufacturing the healthy development of the critical period, although many uncertainties in domestic and international environment, but China's economic development is still in the period of rapid growth, China's comparative advantage in the international mold mold market still exists, the domestic market is also expected to continue to be optimistic mold, mold industry development shows the trend. As more and more multinational companies entering the plastic coupler fittings mould  country, our local hardware business advantage is being challenged. Luo Baihui that our hardware is stainless steel enterprises, especially growth companies must clearly, must seize the strategic opportunities for development, the establishment of reasonable development goals for themselves. Not upstream, there is only the road to extinction. In the end business is to maximize profits or to create value for customers or for the benefit of employees? These points are business goals, but it simply speaking, if we are there to choose only one of the most important target, the value is the highest pursuit of business objectives.
Precision molds will be higher. 10 years ago, precision, precision molds is generally 5 microns, has now reached 2 to 3 micron, 1 micron precision die soon will be listed. This requires super finishing. Mold industry will become increasingly large. This is due to the molding of parts increasingly large-scale and high production efficiency requirements and the development of a multi-cavity mold caused. Multifunctional composite mold mold industry will be further developed. In addition to the new multi-functional composite mold stamping parts, but also responsible for layers, tapping, riveting and assembly tasks such as locking, the performance requirements of steel are also increasing. The Chinese hardware companies how to move forward mold in the rain it? Improve the process of the socialist market economic system, that is, the process of rapid flow, the flow does not know, do not know how the socialist market economy, is to improve the economic operation of modern circulation speed, quality and an important factor in efficiency. Therefore, in order to ensure the continued prosperity of hardware manufacturing, accelerate the development of mold hardware industry, we must do the work of several aspects.
Modern service industry must improve metal mold industry, the development of big business, the formation of large circulation, open circulation pattern, establish an efficient distribution platform, completely change the current hardware distribution platform small, scattered, weak status; must improve industrial development every aspect of the process through the province hardware industry cluster, forming large clusters metal industry, extend the industrial chain, to form interlocking, complementary production patterns, and enhance the overall competitiveness of the hardware industry; must promote hardware production technological innovation and brand building enterprises; must accelerate trade integration and integration of domestic and international trade and industry, and promote the transformation of economic structure adjustment and economic growth mode; must be to develop new markets, expand consumption as the main line, make full use of e-commerce and network service platform to promote hardware large market system, modern logistics system hardware, hardware market monitoring system and hardware business credit system construction, metal industry modernization of circulation as soon as  PE Electrofusion Pipe Fitting possible; need to improve communication and cooperation within the industry, sharing resources, the province's hardware business should be clearly aware of a variety of complex issues arise in the development process, we must pool everyone's wisdom and strength, the use of collective resources, while avoiding disadvantages, strengthen cooperation and promote multi-directional communication outside the industry, and jointly promote prosperity, the formation of the overall effect of the industry, actively respond to trade barriers may arise internationally active challenges to deal with the international market. Die hardware business leaders in determining the direction of development of the enterprise, to seize the key leadership, a clear focus on the work of enterprises, do not waste energy on other insignificant little things, if one thing can not promote staff enthusiasm, but also does not produce profits for corporate development role in promoting short-term or long-term, then it is unnecessary and can be ignored.

Is an effective way to improve the level of mechanization and die industry lowering the efficiency

Production of labor-intensive industry refers mainly rely on the extensive use of labor , equipment and technology and low dependence industry. At this stage, China's mold industry is also mainly plastic injection mould  rely on a lot of labor for production, so China 's mold industry is labor-intensive industries.
With the development of society and economy , China's labor costs also will increase , raise labor costs make China's mold industry profit margins suffer greatly compressed. International Association Secretary-General Luo Baihui mold , said the past two years , many of the original mold factories in China have been transferred to the lower labor costs in India , Cambodia and other developing countries. China 's mold industry to pipe reducing coupling mould maintain their profit margins , continued development in the country , must be considered to reduce labor costs.
In modern production trends, mold companies using machinery for the production, improve the level of mechanization of enterprises is undoubtedly a lower labor cost mold manufacturing enterprises the most effective and convenient way.

The mold is used to shape the article tool that constitute various parts of different parts of the mold by a different composition. It is mainly formed by changing the physical state of the 2 inch pvc coupling mould  material to achieve the shape of the article processing. In blanking, forming stamping, forging, cold forging, extrusion, compression molding or injection molding powder metallurgy processing repression, pressure casting, as well as plastics, rubber, ceramics and other products, and to enable the external force blank becomes a specific shape and size of the tool parts.

Computer graphics board used in mold design related content

Its powerful search functions as mechanical system design and technology provides an important auxiliary tool, greatly reducing their calculations. CAXA2000 unique system query functions including point coordinates, distance between two points and angles, element attributes and perimeter, area and center of gravity inquiries, moment of inertia, query system status and so on. These systems query capabilities specific to the mold design  hdpe couplers mould and manufacturing, CAXA2000 technicians ready to die, they have become an indispensable assistant with CAXA pressure center in solving Die Die, the pressure force of the punch, said the point of center of pressure for the mold. Die pressure center should coincide with the axis of the press slide, the slider from the eccentric load impact. Otherwise, it will accelerate the wear of the slider and the guide portion of the mold, which affects the quality of stamping parts, reduce die life. The method for solving the current mold pressure center is generally used analytical method or graphical method. When analytical method to calculate the workload, error-prone, and plotted graphically on the level designers demanding, but it is difficult to ensure accuracy. Stamping parts in the calculation of the center of pressure, according to the punching force calculation formula: F = LtS where F blanking force ridgeline length L t workpiece thickness S punching shear strength of the workpiece material effect on the punching force evenly the role of the center line, so that the center of gravity of the workpiece blanking force contours. If solving the analytical method, the first look-up table to get the coordinates of the center of gravity of each segment is calculated by solving the above center coordinates calculated tedious, error-prone, in fact, we can directly apply CAXA focus the inquiry, obtain  plastic coupler fittings mould the coordinates of the center of gravity values. The steps are as follows: a pro-rata basis to draw the workpiece shape (marked decimals and decimals inquiry, drawing decimals are set to 4); marked by setting the number of (set display decimal places); according to system configuration settings (to set the query decimal places. ). b. for workpiece contour equidistance line (to improve accuracy, the distance can be set equidistant 0.01) and move the coordinate origin O points. Press Setup, select the user coordinate - the origin, intelligent capture point O points, left the pickup, press Enter. c. original contour line layer to hide, with the focus of the inquiry found CAXA focus of two equidistant lines surround the area into strips. Focus query method:
. a with the mouse in the "Query> drop-down menu, select <center> Options b in the drawing area immediately below the screen menus and operation prompt, select the ring point (Note: Immediately menu <increase ring> is the pickup closed region and other regions to accumulate, "Reducing the ring> refers to the enclosed area is subtracted from other regions). c. Right-click the query results show the coordinates of the center of gravity. After testing, equidistant from the center of gravity coordinates 0.1, the query was obtained as Q (51.715,27.466), equidistant from 0.01 when the query to get the coordinates of the center of gravity for the Q (51.624,27.123), apparently taken equidistant from 0.01 to get The coordinates of the plastic mould  center of gravity to fully meet the requirements of precision mold design. Rough calculation of the size of the drawing parts drawing in non-thinning, excluding material thickness changes. Usually by the surface area of ​​the product plus repair parts of the surface area of ​​the side margin. In other words, with the front and rear deformation principle for calculating the surface area equal parts drawing wool size. To determine pre-drawing sheet size, we must first calculate the gross area of ​​the workpiece.

Situation Analysis of Chinese mold large industrial standardization system

Where the more developed industrial countries , more emphasis on standardization work , because to give industry brings quality, efficiency and effectiveness. Mold is a special forming tool products, although strong individual , but also industrial products , so standardization is very important. Die Die standardization work includes the development Plastic Ball Valve mould  and implementation of technical standards , production and application of the standard mold and the relevant standards advocacy, implementation and promotion. China mold standardization work started late , combined with publicity and promotion efforts to implement small, so the mold behind the standardization of production , but also behind many industrialized countries in the world . Foreign mold developed countries, such as Japan , USA, Germany, mold standardization nearly 100 years of history, production and supply of standard-setting mold , mold standard parts , has formed a complete system . Guarantee of the Chinese die from work just after the establishment of the National Standardization Technical Committee of the mold began in 1983 . At present, China has about 20,000 units of production molds , mold production has made significant progress , but compared with the industrial production requirements , yet could not get one of the important reasons is that the mold and the level is not high degree of standardization .
China mold standardization system , including standard four categories , namely: basic standard mold , mold process quality standards , mold and die parts production-related standards and technical standards . Mold standard and can be mainly categorized stamping die mold standards, standard plastic injection mold , die casting mold standards, forging mold standard , standard fasteners cold heading die , drawing die standard , cold extrusion dies standards, standard rubber molds , glass molds and automotive die standards ten categories . Currently, China has more than 50 standard mold of electrofusion coupling mould  over 300 standard No. 14 kinds of common devices and automotive parts and components die and 244 varieties of 363 standards. These standards development and advocacy to implement and improve the standardization of Chinese mold and level. With the increase in international exchanges , the development of the localization of imported mold -funded enterprises as well as its supporting mold made ​​international standardization requirements , on the one hand in terms of attention to a possible standard-setting international standards or advanced foreign adoption of national standards , including the adoption of advanced corporate standards ; hand many standard mold manufacturing enterprises according to market needs , in addition to standard production outside China mold standard parts , as well as advanced enterprise standard production standard mold . Rich Teba such as Japan , Germany and other companies Haas test standards have been widely popular in China .
Die mold industry standardization concept often referred to more complex, different from the usual level of mechanical industry standardization . The latter generally can be measured by using the standard rate, while the former often refers to the use of standard mold coverage . As the Chinese would not die standardization work late , mold standard parts production, marketing, promotion and application of the work is relatively backward , so the standard mold fewer varieties of specifications, supply is not timely, complete and poor long-standing problem , so that the standard mold use the coverage has been low . Although this year due to foreign intervention , the ratio has been greatly improved , but overall still very low. According to preliminary estimates , at present it was fairly easy to between 40% -45 %. The international community generally above 70 %, of which more than 80% of small molds . Due to the different nature and areas where the Chinese mold companies , there is a big difference in the use of standard mold coverage . Funded enterprises than any other enterprise high , the South than in the North High enterprises . This is most obvious in Guangdong . Guangdong, a  pipe elbows and bends mould large concentration of foreign-funded enterprises , they led to the transformation and development of other business concepts of the market, thus Guangdong mold companies use standard mold coverage is much higher than in other regions of the mold companies . Implementing the standard mold , using the standard mold , the mold can not only improve the quality and reduce production costs and shorten mold mold production cycle. Relevant statistics show that: the standard mold tooling companies can save 25% -45 % of working hours , mold production cycle can be shortened by 30% -40 %. As industrial product variety, low-volume, personalized, fast development of the production cycle , in order to improve the market economy rapid response capabilities and competitiveness in the mold production cycle are increasingly important in today's standardized meaning more die significant .