Shenzhen Shengjinlong Iron and Steel Co., Ltd.

0755-89345123

215088612@qq.com

company's product

Shenzhen Shengjinlong Iron and Steel Co., Ltd.


Contact: Mr. Wu


Contact number: 0755-89345123


Mobile: 13682609066


E-mail: 215088612@qq.com


Address: No. 06, Building A, Building Materials Market, Pingshan New District, Shenzhen


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Galvanized steel pipe connection

Galvanized steel pipe connection: thread, welding.

Rolling groove connection

(1) Rolling groove weld cracking

1. Smooth the inner wall welding ribs of the groove portion of the nozzle to reduce the groove resistance.

2. Adjust the axis of the steel pipe and rolling groove equipment, and require the level of steel pipe and rolling groove equipment.

3. Adjust the speed of the groove, the length of the groove forming can not exceed the specified, uniform and slow force.

(2) Rolling groove steel pipe fracture

1. Smooth the inner wall welding ribs of the pipe groove of the steel pipe to reduce the rolling groove resistance.

2. Adjust the axis of the steel pipe and the rolling groove equipment, and require the level of steel pipe and rolling groove equipment.

3. Adjust the speed of the groove, the speed of the groove should not exceed the specified, and apply evenly and slowly.

4. Check the width and type of the support roller and the pressure roller of the rolling groove device, and whether there is a mismatch between the two roller sizes.

5. Check the groove of the steel pipe with a vernier caliper.

(3) The grooves of the roll forming machine shall meet the following requirements:

1. The surface of the pipe end to the groove section should be flat without any irregularities and no scalding.

2. The center of the groove should be concentric with the pipe wall. The width and depth of the groove should meet the requirements, and check whether the type of the clamp is correct.

3. Apply lubricant to the rubber seal and check the rubber seal for damage. The lubricant should not be oil lubricant.

Welded connection

1. After the butt joint of the galvanized steel pipe is not in a straight line and the steel pipe has a diagonal mouth, it is recommended to cut the pipe head for a short period of time before processing.

2. After the butt joint of the galvanized steel pipe, the two pipes are not docked, resulting in uneven thickness of the weld; and the steel pipe is elliptical due to its own reasons or transportation bumps. It is recommended to cut the pipe head for a short period of time. Then process.

3. After the butt joint of the galvanized steel pipe, the breeze appears at the nozzle:

4. Due to technical reasons during welding.

5. Zinc tumors exist in the nozzle, which causes welding difficulties and problems with sand holes. Simple zinc removal is performed on excessively large and excessive tubes of zinc.