Describe the molding process of plastic bellows

Plastic corrugated pipe is widely used in the wiring connection of machine tool machinery and electric box control cabinet, and has a plastic quick connector. The heat resistance of the plastic bellows means that the stabilizer content of the product processing process is insufficient, and the weather resistance means that it is weather-resistant, ultraviolet aging, and easy to fade. You only need to use fast-acting pigments. The higher the level, the better the weather resistance, and the more expensive the pigment. PP flame retardant corrugated pipe, PP plastic corrugated pipe material: PP polypropylene; working temperature: -30 ° C ~ +100 ° C short time up to +140 ° C structure: internal and off-balance are wave type; color: black (open as needed )
Scope of supply: Flame retardant, FV-O characteristics: good flexibility, surface gloss, chemical resistance Application: important for automotive wiring, machine tool, automation instrument, motor motor, protection cable and wire from external forces Wear and insulation; How to use: Insert the wire and cable into the PP plastic corrugated pipe, and use it with the corresponding model.
There are two kinds of plastic corrugated pipes, one is completely airtight and watertight, such as propellant conveying for launching rockets, gas and water heaters; the other is continuous winding with strips, and ordinary winding corrugated pipes are used. Protection cables, such as magnetic card telephones, machine tools, and the bellows of the desk lamp are clamped into the wire during the production process.
Classified by forming process:
(1) Hydroforming corrugated pipe hydroforming is the most common forming method for bellows. With the liquid pressure in the tube blank, the tube blank bulges in the confinement ring until yielding occurs in the hoop direction, and then the tube blank is compressed to the desired length. This method is often used for small diameter bellows.
(2) Roll forming bellows roll forming process is mainly used for processing large bellows. It is formed by roll forming of forming wheel set in the tube blank, which can be formed by single wave rolling. Some devices can also be formed into several ripples at one time. .
(3) The mechanical bulging bellows adopts a tire that expands inside the tube blank, and is expanded into corrugations one by one. After initial forming, it is custom-made with internal and external boring.
(4) Welding and forming bellows For the bellows with excessive wave height or special waveform, the stamping welding process is often used. When the wave height exceeds the limit, the material elongation has not been allowed to adopt the integral forming process, or the welding is formed because the waveform is complicated and the overall forming is extremely difficult. Such bellows are not suitable for the flexible section of the expansion joint because they cannot withstand internal pressure.
(5) Deposition of the bellows The process is to deposit the bellows material onto the mandrel by electrodeposition and then ablate the mandrel. The bellows material is a very soft, pure nickel metal material that is non-porous and therefore resistant to high vacuum and can be welded. It is not advisable to use such a bellows for the flexible section of the expansion joint because the cost is too high and it is limited to nickel.
Classified by number of layers:
(1) The single-layer bellows adopts a single-layer corrugated view for the bellows that compensates for displacement under static load, which is simple to manufacture and low in cost. Under the premise of ensuring the pressure capacity, compensation amount, stiffness and fatigue life required by the design, a single layer of bellows should be preferred.
(2) Multi-layer corrugated pipes are used for alternating loads, or more important ones, more than two layers of multi-layer corrugated pipes are used. Compared with the single layer, the stiffness is small and the fatigue resistance is good under the same bearing capacity.

Product Introduction

PAC series products are of different degree of polymerization of the composition of inorganic polymers, which is mainly composed of Al13O4(OH)24(H2O)127 plus highly charged polymer chain polymerization of aluminum ions and colloidal particles in water with high efficiency and power in and bridging flocculation function, can effectively remove the water turbidity, color, heavy metals and trace organic compounds. Similar to DBNPA 2,2 Dibromo 3 Nitrilopropionamide, TTA Tolyltriazole , Isothiazolinones Bactericide and PAM Polyacrylamide FlocculantPolyaluminum Chloride PAC is also a kind of  Water Treatment Chemical .


Features:

 1, Forming fast activity is good, filter is good; 
 2, No added alkaline additives, such as the case of deliquescence, the results remain unchanged; 
 3, Suitable PH value of wide, strong adaptability and wide range of uses; 
 4, Treated water, less salt; 
 5, To remove heavy metals and radioactive substances to water pollution; 
 6, Active ingredients, ease of storage and transport. 

 

Specifications

Name

coagulant

Model

content of 30%

(Al203) content

30%

Color

yellow powder

Application

Water Purification

Certification

SGS

Size

0.5-1mm

PH(1% water solution)

3.8

Water insoluble matter%/≤

1

Ammonia nitrogen (N) content%≤

0.01

Arsenic (As) content%

0.002

Lead (Pb) content%

0.001

Cadmium (Cd) content%

0.002


Package: 25kgs bags or 1MT jumbo bags or made to order.


Polyaluminum Chloride PAC

Polyaluminum Chloride Pac

Polyaluminum Chloride,Polyaluminum Chloride Pac,Water Treatment Chemicals,Water Treatment

Zhengzhou Chorus Lubricant Additive Co.,Ltd. , https://www.cn-lubricantadditive.com