[China Aluminum Network] In recent years, China's aluminum-spraying enterprises have developed rapidly, more and more new companies have been established, and old companies have continuously upgraded their technologies. Therefore, the market prospect of aluminum-spraying machines is very broad. However, most companies have smaller scales, low product levels, and poor reliability. Some companies that produce higher-end aluminum-spraying equipment have heavy import dependence, low development capacity, insufficient R&D investment, and lack of professional and technical personnel. This has also caused domestic spray aluminum machinery products to suffer. Rickets. Aluminum spraying machine automation still stays at the imitation stage. It has weak self-developing ability and lacks scientific research and production experiment base. The product quality gap is manifested in low product performance, poor stability and reliability, unsightly appearance, rough surface treatment, and many components. Poor, low life, and low reliability affect the overall product quality.
1. Most aluminum spraying machinery companies are small in scale.
There are many aluminum-spraying enterprises in China with large output and diverse product types. This has become one of the important factors restricting the development of China's aluminum spraying machinery industry. The aluminum spraying machinery industry has serious problems with repeated construction. The low barriers to entry and inadequate control measures are the main causes of this problem. The country has a low starting point for aluminum-spraying machinery and a small-scale enterprise. It is congenitally deficient and cross-departmental. It has the problems of overall planning and macro-guidance. Investment and development of new products tend to occur everywhere, with disorderly competition that repeats with the same level. The emergence of a large number of fully automatic seam welding machines in recent years is an obvious example.
At present, there are only a few aluminum-spraying machinery manufacturers in China, which have a large scale and a certain amount of intellectual property rights, and there are also a large number of aluminum-spraying machines. These products are also the preferred equipment for domestic large and medium-sized aluminum-spraying enterprises. However, for most small-sized aluminum-spraying machinery enterprises, there are many low-level equipments. Although they meet the special needs of small-sized aluminum-spraying enterprises with small output and many varieties, the low level of repeated competition is not conducive to the development of aluminum-spraying machinery. . In Zhejiang, Jiangsu, Shandong, and Hebei, there are many small and medium-sized aluminum-spraying machinery manufacturers, and they also have a large number of users in China.
2. Most aluminum spraying machinery products have low levels.
The majority of domestic aluminum-spraying machinery enterprises mainly produce relatively simple equipment, with too few repetitions at low levels, low technological content of products, simple manufacturing processes, and low precision requirements for processing equipment. Most small and medium-sized aluminum-spraying enterprises start with this aluminum-spraying machinery. Enterprises rely on low-level products to accumulate funds and experience, and they are close to mid- to high-end products. Some companies are stagnant.
3, high-end aluminum injection machinery and accessories rely heavily on imports.
China's high-end aluminum spray equipment mainly relies on imports. Currently, the main imported equipment is fully automatic seam welder, mid-stage vertical spray aluminum production line, and some key equipment accessories.
There are only a few aluminum spray machinery manufacturers in China that can provide complete sets of production lines. Most aluminum spraying machinery manufacturers only provide some equipment or accessories.
The gap between advanced aluminum spraying machinery in China and foreign countries is still large, and the main difference is the gap in technology and technology. Most of the aluminum spraying equipment imported by China is the host part or high-end equipment of the international advanced level, while the exports are mostly representative of domestic high-level complete sets of production lines. The exporting countries are mostly developing countries. It can be seen that China's current export of aluminum-spraying machinery compared with imports, regardless of product quality, quantity or technical content in terms of all aspects, and foreign advanced level products there is a considerable gap.
4, lack of aluminum spray machinery and technical personnel.
Probably because the aluminum-spraying machinery industry is not profitable, it is difficult to attract technical talents, resulting in uneven talent teams, weak capacity for independent development of products and innovation, and even weak ability to digest and absorb similar foreign products, resulting in consistent products for many years. Among the technical personnel of aluminum machinery enterprises, the situation of brain drain is relatively serious, and the competition among talents among enterprises is also very severe.
PEEK Plastics,Polyether ether ketone, known in English as polyetheretherketone plastic (PEEK Plastics), is a linear aromatic polymer containing chain sections in the main chain of molecules.Its constituent units are oxygen-pairs of phenyl-oxycarbonyl - pairs of phenyl, semi-crystalline, thermoplastics.
Product name: polyether ether ketone (PEEK Plastics) resin is a kind of excellent special engineering plastics, PEEK Plastics has more significant advantages compared with other special engineering plastics, resistance to high temperature is 260 degrees, mechanical performance, good self-lubrication, resistance to chemical corrosion, flame retardant, stripping resistance, abrasion resistance, no strong sulfuric acid, nitric acid resistance, radiation resistance, strong mechanical properties can be used for high-end technology such as mechanical, nuclear engineering and aviation.
PEEK Plastics has heat resistance, chemical stability and the forming process of thermoplastic plastic. PEEK Plastics has excellent heat resistance.Its thermal deformation temperature of 160 ℃, with 20% ~ 30% Glass Fiber reinforced, heat distortion temperature can be increased to 280 ~ 300 ℃.Polyether ether ketone is good, the thermal stability of 420 ℃ in air.2 h under weightlessness is only 2%, at 500 ℃ was 2.5%, significantly thermo-gravimetric 500 ℃.Polyether ether ketone of long-term use of temperature is about 200 ℃, under this temperature, still can keep the high tensile strength and bending modulus, PEEK Plastics is also a kind of very strong material, has excellent resistance to creep and fatigue performance for a long time.
PEEK Plastics electrical insulating performance is very excellent, volume resistivity of about 10 ~ 10 Ω · cm.It still has small dielectric constant and dielectric loss in high frequency range.For example, in 10Hz, the dielectric constant in the room is only 3.2 and the dielectric loss is only 0.02.
The chemical stability of polyether ether ketone is also very good. In addition to concentrated sulfuric acid, almost any chemical reagent is very stable, even at high temperature, PEEK Plastics can maintain good chemical stability.In addition, PEEK Plastics has excellent heat resistance and steam resistance.In 200 ~ 250 ℃ steam can be used for a long time.
PEEK Plastics with good flame retardancy, in normal circumstances it is difficult to burn, even burning, smoke and harmful gas release a quantity to also is very low, even lower than low smoke volume of polymer such as ptfe.In addition, PEEK Plastics has excellent radiation resistance.Its resistance to alpha rays, beta gamma rays and gamma rays is the best current polymer material.The wire products covered with it can withstand gamma rays of 1.1 x 10Gy.
The polyether ether ketone has good fluidity and thermal stability at the melting point.Therefore, PEEK Plastics has the typical processing performance of thermoplastic plastic. Therefore, it can be used for injection molding, extrusion, blow molding and laminating, and also spinning and making films.Although the polyether ether ketone melt processing temperature range is 360 ~ 360 ℃, but because of its thermal decomposition temperature above 520 ℃, and it still has the very wide processing temperature range.
Although the development history of PEEK Plastics is only a short 20 years, but because PEEK Plastics has the outstanding heat resistance, chemical corrosion resistance, radiation resistance and high strength, easy to machining, PEEK Plastics is currently in the nuclear industry, chemical industry, electronic appliances, machinery, instrument, automobile industry, and has been widely used in aerospace field.In particular, thermoplastic resin, which is excellent in heat resistance, can be used as the base material of high performance composite materials.
modified
PEEK Plastics performance of the pure material is difficult to meet the different needs of different industries, in special working environment need to modification of PEEK Plastics, its main means blending modification, copolymerization modification, reinforced composite, infill modification, nanometer modification and surface modification technology.The modification can increase the performance of PEEK Plastics, such as wear resistance, impact strength, etc., thereby extending the application range of PEEK Plastics, reducing the cost of materials and improving the processing performance of PEEK Plastics.
Application
PEEK Plastics has been widely used in aerospace, automotive manufacturing, electronics, medical and food processing.
PEEK Plastics has excellent performance, its application field will be more widely with the domestic application research, the current domestic set up the chongqing sanxin materials research center is a professional engaged in the research of PEEK in the field of application.The research center is under the chongqing government entities at all levels of leadership and care, is committed to in the field of automobile, electrical and electronic fields, transportation research, in the present walk at the forefront of the domestic application research.
PEEK Plastic Sheet,Conductive PEEK Sheet,Esd PEEK Plastic Sheet,Esd Polyetheretherketone Sheet
Dongguan Noegem Plastic Products Co.,Ltd , http://www.noegempLastic.com