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PEX AL PEX multilayer pipe
- Product No.:20221125145852
Product Description

Technology Construction
I Selection of Raw material
Three major SILON producing areas:
1. Czech factory -- supply Europe
2. Canadian factory -- supply North America
3. China Constab -- supply the asia-pacific region
Huajia only choose high quality PE-Xb raw materials fromthe company China Constab and Korea modern crosslinking material. The annual purchase quantity of Constab is more than 1000T which exceeding its 20% of total production and Efield is one of three biggest customers of Constab.
1. Czech factory -- supply Europe
2. Canadian factory -- supply North America
3. China Constab -- supply the asia-pacific region
Huajia only choose high quality PE-Xb raw materials fromthe company China Constab and Korea modern crosslinking material. The annual purchase quantity of Constab is more than 1000T which exceeding its 20% of total production and Efield is one of three biggest customers of Constab.
II.Selection of aluminium tape
Huajia adopts customized southwest aluminum and wuhan xinghuan hot-rolled aluminum. PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in all shapes.
During the production process, 300mm sample tubes are reserved for each coil of pipe and marked the production date. The sample tubes are used for stripping test and expanding test. Each roll of rewinding pipe is tested by pressing test and shot blasting test.
IV. Crosslinking treatment
hot-rolled aluminum
1. Has been annealed twice and is suitable for stamping and stretching 2. The tensile strength is stronger, and the elongation reaches 30% to 35%. 3. better than cold-rolled aluminum 4. easy to bend without affecting the construction 5. price is higher
1. Has been annealed twice and is suitable for stamping and stretching 2. The tensile strength is stronger, and the elongation reaches 30% to 35%. 3. better than cold-rolled aluminum 4. easy to bend without affecting the construction 5. price is higher
cold rolled aluminum
easy to break when bending without annealing treatment.

easy to break when bending without annealing treatment.


III. Process control
National standards focus on batch testing of manufactured products. However, according to theEuropean standard ISO21003, Huajiapays attention to the inspection of production process and the detection frequency is much higher than the national standard.
IV. Crosslinking treatment
Crosslinking treatment is the core of crosslinking PAP pipes. Huajia adopts unique crosslink processing equipment. Through over 95 ℃ hot water 8 h and strictly control the production process to ensure that each meter of pipe material is cross-linked. The crosslinking degree is more than 70%. (standard > 65%) Only by fully crosslinking can the molecular structure change into a three-dimensional network distribution. In a strict sense, only when the plastic is cured can it be called thermosetting plastic. After clamping and slippage, there will be no heat expansion and cold shrinkage, no water leakage and water seepage.
Huajia has own lab to make most pipe tests.
Including Appearance, Dimension, Pull-out Test, Delamination Resistance, Adherence and Cracking by Expansion, Hydraulic Strength, Bursting Test, Cross-Linking degree, Heating Behavior etc.




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Name: Amy Huang
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Add: Youdi Metal processing Park, Diankou Town, Zhuji city, Zhejiang province