Berita Syarikat

HDPE Gas Pipe Corrosion-resistant Lasting Strength

2018-11-15

HDPE Gas Pipe Internationally, the polyethylene pipe material is divided into PE32, PE40, PE63, PE80, PE100 five grades, and for the gas pipe and water pipe material is mainly PE80 and PE100. China's polyethylene pipe material is not graded, which makes the domestic polyethylene gas pipe and water pipe manufacturers to choose raw materials more difficult, but also to the use of polyethylene pipe has brought no small hidden dangers.

Oleh itu, Biro Piawaian Kebangsaan dalam piawaian GB / T13663-2000 baru membuat banyak pindaan, peruntukan paip bekalan air pada tahap PE80 dan PE100 yang berlainan sama dengan intensiti tekanan yang berbeza, dan mengeluarkan sifat kekuatan tegangan piawai lama, dan meningkatkan Elongation fraktur (lebih daripada 350%), yang menekankan kekuatan asas.

Gas with pe pipe is the traditional steel pipe, poly chlorine text ethylene gas replacement products. Gas pipe must withstand a certain pressure, usually to use a large molecular weight, better mechanical properties of PE resin, such as HDPE resin. LDPE resin has low tensile strength, poor pressure resistance, poor rigidity, poor dimensional stability during molding, and difficulty in connection, and is not suitable as a material for water supply pressure pipes. But because of its high health indicators, LDPE, especially LLDPE resin has become a common material of the gas pipe. LDPE, LLDPE resin melt viscosity is small, good mobility, easy processing, and thus its melt index selection range is also wide, usually MI between 0.3-3g / 10min.

Proses permohonan saluran paip HDPE Gas, HDPE Gas Pipeline boleh mencapai jangka panjang yang diperlukan oleh faktor utama adalah meletakkan kualiti. Pipa PE mempunyai pelbagai sifat unik untuk membuat pemasangan pipa yang lebih selamat, cepat, dan reka bentuk pembinaan dan prosedur pemasangan yang betul akan menjadikan kelebihan saluran ini menjadi lebih besar.

First, the performance characteristics of HDPE Gas Pipe

1, corrosion resistance

2, lasting strength

3, faktor keselamatan yang lebih tinggi

4, excellent coiling

5, kebolehan anti-calar yang baik

6, good resistance to rapid cracking to pass resistance

7, advanced fuse fittings structure

8, sepanjang hayat, sehingga 50 tahun.

Second, HDPE Gas Pipe technical indicators:

1, elongation at break%> 350

2, thermal stability (200 ℃), min <20

3, vertical size retraction rate% (110 ℃) <3

4, hydrostatic strength:

(1) 20 ℃, ring stress 9.0Mpa, toughness destruction time> 100h

(2) 80 ℃, ring stress 4.6Mpa, toughness destruction time> 165h

(3) 80 â "ƒ, tekanan cincin 4.0Mpa, masa kerosakan ketumpatan 1000h

Third, HDPE Gas Pipe connection steps:

1. Clamp and clean the port

2. Adjust and sharpen the port

3. Port is straight

4. Pressure welding

5. penyejukan tekanan tekanan

Fourth, HDPE Gas Pipe connection points

Pipe, kelengkapan paip pemasangan cair panas pemasangan gas PE polyethylene dikebumikan, paip D90 mm di bawah penggunaan sambungan soket panas mencairkan, D90mm di atas penggunaan cara dandang panas-meleleh, pemasangan sistem paip yang betul untuk memastikan pengguna sendiri keselamatan dan kualiti kejuruteraan, kami Adalah disyorkan untuk menggunakan mesin kimpalan berbilang sudut dan mesin docking panas yang disediakan oleh syarikat kami. Langkah-langkah kimpalan adalah seperti berikut:

1, will need to weld the pipe, pipe fittings fixed on the docking machine, according to the size of the use of fixture pipe, the face with a milling cutter planing, so that the docking face smooth, clean and vertical.

2, adjust the pipe, pipe height, so that the pipe to be welded, pipe fittings face exactly the same, and connected to the heating plate.

3, to be heated to the heating plate to the rated temperature, will need to weld the pipe, pipe fittings to make the end of the heating, to reach the heating time, the pipe, pipe fittings from the heating plate separately, and then the two heating end of the docking, Uniform flange, to be cooled. The technical requirements for hot-melt docking are in line.