Bimetal technology contributes to the plastics industry |
發(fā)表時間：9/6/2017 11:45:31 AM 點擊：24 |
As we all know, materials, energy, information is the three cornerstones of modern industrial development, its level of development, represents a country's overall science and technology development capacity. In the material science, bimetallic technology is a very important means to increase the service life of mechanical parts, it is a common metal material as the mother, and in the mechanical parts of the work surface is another layer of a special role with the alloy, with To improve the parts of the anti-wear, corrosion and other properties, increase the service life of parts. To the most economical material structure, to obtain the highest economic efficiency, is the reason why bimetallic technology has become the world's material industry people pursued a driving force.
As a new technology with great potential for development, bimetallic technology is showing an increasingly important role in various fields of industrial development in China.
In the field of plastic processing, with the rapid development of plastic processing industry, a variety of new modified plastic materials continue to emerge. In addition, in order to obtain a variety of special properties, or in order to reduce production costs and other purposes, plastic resin and often need to add a certain proportion of high-strength reinforced plastic materials, often added, such as carbon, asbestos, glass, boron and other reinforcing fibers; Of various fillers such as chalk, silica, recrystallized white, clay, cellulose, mica, talc, alumina and metal powders. The addition of these enhancers, fillers and inorganic colorants, or the recovery of plastic contaminants into the machine, exacerbates the corrosion of the plastic parts of the plastic extruder and plastic injection machine - the melt barrel and the conveyor screw Or wear failure, making the processing machinery production efficiency, product quality instability, maintenance machinery and the number of parts replacement, the cost increases, the plastic processing industry, the great impact on the economic efficiency of enterprises. The production situation is increasingly anxious to call for the use of high wear-resistant, corrosion-resistant bimetallic barrels and screws instead of conventional nitriding machine barrel screw as the heart of the machine components to extend the service life of the machine.
So what is the bimetallic barrel? With different types of high wear resistance, or high corrosion resistance of the alloy material in the barrel (or as a sol tube) of the hole surface as a working layer. Alloy material thickness generally reach 2.0 to 3.0 mm, Rockwell hardness is generally 60 degrees or more, and then through a special mechanical processing of the barrel, that is, double metal barrel; and bimetallic screw is in its rib Working surface, or in its entire spiral edge of the face, a layer of composite thickness of 1.0 ~ 2.0 mm in general special alloy (Rockwell hardness of the alloy is generally more than 58 degrees), the special mechanical processing of the screw. The unique superiority of the bimetallic barrel and the bimetallic screw is that it is less than twice the price of the ordinary nitriding barrel screw, and the theoretical service life is four times or more of the ordinary nitriding barrel screw, and the price is quite significant The
In the United States of America plastic processing industry manufacturers, more than 95% of the extruder and more than 75% of the injection machines are used bimetallic barrel and bimetallic screw as the heart of the machine components, well-known professional manufacturers have XALOY (Exa Sallo) Company; in Europe, all single screw extruder manufacturers, 60% of manufacturers to provide bimetallic products to choose from, 30% of manufacturers only provide bimetallic products installed. Famous professional firms are: BROOKES, Germany KRAUSS-MAFFEI, KRUPP, REIFENHAUSOR, OMG (OMG), Italy, Switzerland's BERNEX, etc. In Asia, the use of bimetallic products is low and a few are dependent on imports, with the exception of Nippon Steel Works, Kobe Steel Works in Japan, Shanghai Kangda Machinery Manufacturing Co., Ltd., Taiwan Star companies and other small number of manufacturers to full-time development and manufacture of bimetallic products, there are very few other professional suppliers. The majority of market demand and high-speed economic development, the region's supply and demand is increasing.
It is the "X" series alloy of XALOY company, the "BERNEX" series alloy of Bernabside, Japan's Hitachi Metals Co., Ltd., which is used in the production of double metal barrels. "H" series of alloy director, research and development for low-cost production, high-quality and durable needs of the various surface hardening alloy material series. The alloy series is divided into three categories, six varieties: excellent wear resistance, low production cost and can completely replace the nitrogen alloy α101 series alloy, the alloy is suitable for adding plastic in the ordinary plastic, filler forming; Corrosion resistance, especially resistance to various types of weak acid α201 series alloy, suitable for such as PTFE, PVC, PMMA, CP, PPS and other corrosive plastic molding processing; and when the above corrosive plastic in the forming process, But also need to add to enhance or fill the components, the machine not only made corrosion resistance requirements, but also put forward the wear resistance requirements, then, α301 series alloy is the best choice for users.
With the plastic processing industry in mainland China's vigorous development, the plastic manufacturers of the production of plastic products, the inherent quality of the economic benefits of plastic production increasingly attention. The other aspect of the problem is that China's early introduction of tens of millions of plastic extruder and plastic injection machine, coupled with the early years of China's various plastic machinery companies to produce their own machines, are gradually into the update period, which The formation of another huge plastic machine to update the market. In this process, bimetallic technology has played an important role. In the old barrel into the bimetallic cylinder, and in the old screw has been worn on the surface of the screw with a layer of special wear-resistant alloy, with such a double metal technology refurbished barrel screw , The material structure has become a bimetallic form, and this method of updating these heart parts even more than the original purchase of new nitriding parts life longer. For large-scale extrusion production lines, as well as large-scale injection machine, its significance is not a simple plant's economic benefits, and even related to the national economy low-cost, high-speed development of the overall situation.
China's industrial sector, due to material failure caused by economic losses, the annual billion to calculate. We look forward to bimetallic technology in China's plastic processing industry in China's other industrial areas, to meet the needs of the market and further rapid development in China's industrial development process usher in a more brilliant tomorrow. |
|
No.61-65,Ligang Fishery Team,Liping Village,Jintang Town,Dinghai District,Zhoushan,Zhejiang
sales@china-huijin.com
0580-8050433
