Galvanized steel pipes used for domestic water supply are all connected by threads, also known as threaded connections. Generally, water supply pipes with a nominal diameter not exceeding 100 mm and a nominal pressure not exceeding 1 MPa can be connected by threads. The threads of the connecting pipes are also divided into two types, […]
Galvanized steel pipes rely on their own high toughness, good bending and welding properties, but are mainly made of important parts that require extremely high wear resistance and crack resistance. The thickness of the wear-resistant layer of wear-resistant alloy pipes varies, generally controlled between 3-120mm, so their hardness grades are also different. Compared with ordinary […]
Hot-dip pure zinc products, code is GI. The characteristics of hot-dip pure zinc products are beautiful surface, good corrosion resistance and good processability. It is divided into two types, one is normal zinc spangles, and the other is zinc-free spangles. In the past, hot-dip galvanized products always had some zinc spangles on the surface because […]
The function of the pipeline is mainly to transport liquids or other solids. It can be said to be the most commonly used equipment in our lives. 3 treatment methods for pipeline anti-corrosion. 1. What are the treatment methods for pipeline anti-corrosion? 1. Pipeline external anti-corrosion design Petroleum asphalt is the oldest pipeline anti-corrosion layer, […]
Before hot-dip galvanized steel pipe welding, the hot-dip galvanized steel pipe is mainly heated, and welding begins after temperature control for 30 minutes. The heating, solid layer temperature and heat treatment process of welding are automatically controlled by the temperature control cabinet of the heat treatment process. The far-infrared crawler heat treatment furnace is used […]
The buried pipeline uses plastic-coated steel pipe for the transmission line tower, which is composed of towers connected by tower pole devices. The pole tower is made of steel. The surface of the tower pole steel and the inner and outer surfaces of the tower pole are hot-dipped with a modified polyethylene plastic layer. The […]
1. Galvanized pipes and fixtures should be cleaned of foreign objects such as oil, residual salt, paint, etc. before heat treatment; 2. The fixtures used in the vacuum furnace for the first time should be degassed and purified in advance at a vacuum degree not lower than the required degree of the workpiece; 3. Workpieces […]
The transmission line tower of the buried pipeline adopts plastic-coated steel pipe, which is composed of towers connected by tower pole devices. The pole tower is made of steel. The surface of the tower pole steel and the inner and outer surfaces of the tower pole are hot-dipped with modified polyethylene plastic layer. The plastic-coated […]
Plastic-coated steel pipes are used everywhere in life, such as building water supply pipes, fire water supply pipes, special pipes for coal mines, hot spring anti-corrosion and thermal insulation pipes, and cable protection pipes commonly seen in modern life. Common steel-plastic composite pipes are actually mainly plastic-lined steel pipes and plastic-coated steel pipes. The following […]
3PE anti-corrosion steel pipe spraying technology, most domestic 3PE anti-corrosion steel pipe production technology adopts the production and processing technology of “epoxy powder spraying, adhesive and polyethylene lateral extrusion, winding rolling”, because the powder and electrostatic thermal spraying method does not require rolling system, thus solving the problem of thin weld coating of spiral structure […]
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