“Plastic performance is the foundation of injection molding technology”, mastering the process performance and characteristics of various plastics is the basic professional knowledge that every injection molding worker must understand. The performance of plastics is the basis for setting “injection molding process conditions”. One of the factors that must be considered when analyzing quality problems…
PP air duct is produced by stamping method and high-speed extrusion method. The punching method is to punch holes with a punch, roll with a roll at the same time, flatten with a mandrel continuous rolling mill, and indirectly extrude in an extruder with a high-speed extrusion method. The pipe processed by this method has…
The choice of PP air duct must be based on its material properties and cannot be sloppy. PP air ducts are widely used in chemical industry, environmental protection, food hygiene, building water supply and drainage and other fields. It can transport various corrosive media below 90℃. Its stiffness and load-bearing strength are superior to traditional…
PP air ducts are mainly used in industrial and construction projects, and the application areas mainly include: the electronics industry of clean room purification systems, pharmaceutical and food aseptic workshop purification systems, hotels, factories, office buildings, shopping malls, air conditioning systems, industrial pollution control and dust , smoke and exhaust ducts, industrial environments, such as…
Polypropylene (PolyPropylene, PP for short) is a semi-crystalline thermoplastic. It has high impact resistance, strong and tough mechanical properties, and is resistant to various organic solvents and acid and alkali corrosion. It has a wide range of applications in the industry and is one of the common polymer materials. The molecular structure of polypropylene is…
PP pipe has lower hardness and poorer rigidity than metal pipe, so it should be maintained during transfer and construction to prevent mechanical damage caused by improper external force. The orientation of the pipeline should be marked after dark application to avoid damage to the pipeline by the secondary decoration. PP pipe has a certain…
The commonly used socket welding method for PP pipe welding sleeve is to use sandpaper to wipe off the surface of the joint between the pipe or pipe components. If there is a problem with grease on the surface, wipe with vinyl chloride or acetone, insert both sides into the welding sleeve, and insert the…
When the factory is making the electroplating tank, in order to prevent the corrosion of acid and alkali and other requirements, the PP material is generally selected, and the thickness ranges from 10-15mm. PP can be simply understood as plastic, but do you understand its chemical composition and physical properties? PP is a semi-crystalline material.…
1.When installing PP pipe, the influence of ambient temperature on the quality of the device should be considered. Generally, when the temperature is higher than 40°C or lower than 0°C, the installation should not be constructed. 2.Due to the large expansion coefficient of the PP pipeline, thermal compensation should be considered during installation, generally based…
When the pp square pipe is installed, if the operating space is too small, the electrofusion connection method should be used. When the pp square pipe is connected by hot-melt socket, the heating temperature should not be too high, and the temperature should be controlled at about 210 °C, otherwise there will be too much…
