The use of raw materials for the production of salt spray corrosion test chambers

The key to salt spray test chamber and corrosion-resistant clothing environmental test chamber is to detect and accelerate the corrosion resistance characteristics of some raw materials in normal natural environments, and evaluate the working ability of some commodities to resist corrosion and erosion; This product is used in the safety protection layer of spare parts, electronic components, metal composite materials and their industrial products corrosion corrosion resistance and
corrosion test.
Therefore, the production and selection of corrosion-resistant raw materials are particularly critical, first consider whether the salt spray test chamber needs to use PVC panels? Can PVC board replace PP board, FRP, hard plastic board? Analyze the benefits and advantages of applying PVC panel salt spray test chambers: the main uses of salt spray test chambers and the selection
of materials.
1.
Organic chemistry and physical characteristics PVC (polyethylene) 2, stiffness PVC is a widely used plastic material, PVC raw material is this amorphous raw material
.
3.
PVC raw materials are often added to thickeners, lubricants, auxiliary production processing agents, pigments, impact resistant agents and other preservatives
in specific applications.
4.
PVC raw materials have non-combustibility, high toughness, weather resistance and high-quality geometric reliability
.
5.
The melting temperature of PVC in the production and processing is a very critical processing process main parameter, if such parameters are not good, it will cause the problem
of raw material dissolution.
6.
The fluidity characteristics of PVC are very poor, and its processing technology scope is too narrow
.
Very large content of PVC raw materials is more difficult to produce and process (such raw materials generally need to add lubricant to improve the fluidity characteristics), so the general application is all small content of PVC raw materials
.
7.
PVC often has strong resistance to
reducing agents, oxidants and strong bases.
As everyone knows, it can be eroded by concentrated air oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and it is not suitable for contact with aromatic hydrocarbons and isopropyl titanate hydrocarbons
.
8.
The shrinkage rate of PVC is very low, usually 0.
2~0.
6%.

According to the development of the salt spray test chamber sales market, FRP and hard plastic board are slowly replaced by PVC board, and PP board is not widely used because of the higher cost and small available industry, but if the customer must do copper to speed up the salt spray test, or have requirements, try to meet the requirements of the customer
.