The same is true in the plastic industry. The hardness, wear resistance, toughness, cracking resistance, collapse angle resistance, corrosion resistance and processing accuracy of plastic molds make them very popular. So, what is the future development trend of plastic mold?
1、 High quality
The development trend of die steel in Europe and America is that carbon tool steel, low alloy tool steel and high alloy tool steel have successively appeared a series of new die materials, and the alloying degree of die standard steel is also increasing.
1. Development trend of new plastic die steel abroad
Plastic mold steel with good free cutting and polishing properties, such as 412 and M-300 of the United States, YAG of Japan, EAB of the United Kingdom, stavax-13 of Sweden, etc; Pre hardened plastic die steel, such as P20 and 445 in the United States, PDS in Japan, movtrex-a (2312) in Germany, etc; Integrally hardened plastic die steel, such as A2, D3 and H13 in the United States; Corrosion resistant plastic die steel, such as 110cr-mo17 in the national standard ISO and 4Cr13 in the Swedish Assab company.
2. Advanced die surface treatment technology
The surface of die was treated by multi-element infiltration and compound infiltration instead of single element infiltration. The coating on the mold surface can be tic, tin, TiCN, TiAlN, CrN, Cr7C3, W2C, etc. the coating can be prepared by physical vapor deposition, chemical vapor deposition, physical chemical vapor deposition, ion penetration, ion implantation and other methods.
2、 High accuracy
The high-speed scanner and the mold scanning system provide many functions required from the model or the physical object scanning to the processing of the desired model, greatly shortening the mold development and manufacturing cycle.
The mold scanning system has been successfully applied in the European and American mold industry. The equipment in this respect, such as the high-speed scanner (cyclonseries 2) of Renishaw company, can realize the complementary advantages of the laser probe and the contact probe. The laser scanning accuracy is 0.05mm and the contact probe scanning accuracy is 0.02mm.
3、 High efficiency
1. High speed cutting technology is widely used
It is generally used for large-scale panel dies, and its surface processing accuracy can reach 0.01mm. After high-speed milling and finishing, the mold surface can be used only with a little polishing, saving a lot of time for grinding and polishing. High speed machining greatly shortens the mold making cycle, thus improving the market competitiveness of products.
2. Combination of rapid prototyping technology and rapid tooling technology
The combination of rapid prototyping technology and rapid tooling technology is applied to mold manufacturing, that is, the prototype of product parts is manufactured by rapid prototyping technology, and then the mold is rapidly manufactured based on the prototype. The cost of using this technology from mold design to manufacturing is only 1 / 3 of that of traditional methods. The rapid prototype casting silicone rubber mold is used for turning a small number of plastic parts, which is very suitable for the trial production of products. The injection mold made of aluminum can shorten the injection cycle by 25-30%, greatly reduce the weight of the mold and shorten the grinding and polishing time by half.
4、 Innovation power
In order to strengthen the competitiveness, the production of foreign die steel tends to be centralized from decentralized, and many companies have conducted transnational mergers. In order to better compete, these companies have built complete and technologically advanced die steel production lines and die steel scientific research bases, and formed several world-famous die production and research centers to meet the rapid development of the die industry.
Editor's note: the mold industry is a modern process base material and an industry relying on technology and quality. Only by strengthening research and development can we be invincible in the industry. At present, there is still a certain gap between the domestic mold industry and foreign counterparts. However, as long as we quickly absorb foreign advanced technology and constantly try to improve and innovate, we will certainly make great breakthroughs in the near future.
