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How to distinguish JDG pipe is cold galvanized or hot galvanized

How to distinguish JDG pipe is cold galvanized or hot galvanized

The two ends of the hot-dip galvanized steel pipe have blue ink printing hoops, and the whole body has implementation standards and specifications

08

2023

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05

Hot galvanized sheet surface black why?

Hot galvanized sheet surface black why?

Hot galvanized sheet black cause: A. The purity of the galvanized layer is not enough, the metal impurities on the zinc surface constitute a galvanic cell, and when it is favorable for hydrogen evolution, it is easy to produce black spots on the surface of the zinc layer.

08

2023

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05

Talk about the advantages of hot-dip galvanized products

Talk about the advantages of hot-dip galvanized products

Hot dip galvanizing is an effective metal corrosion prevention method, which is mainly used in metal structure facilities in various industries.

08

2023

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05

The construction of hot-dip galvanized bolts should pay attention to the following aspects

The construction of hot-dip galvanized bolts should pay attention to the following aspects

1, product quality: should clean the surface rust, oil, nut hole wall burr, weld and so on; After contact friction surface treatment, it should meet the requirements of scratch resistance coefficient.

08

2023

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05

Process introduction of hot-dip galvanized bolt fasteners

Process introduction of hot-dip galvanized bolt fasteners

Hot-dip galvanizing (or simply hot-dip galvanizing) is a method of plating plated fasteners by dipping them into liquid metal zinc or its gold with a low melting point. Hot-dip galvanized fasteners mostly use solvent method.

08

2023

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05

What is the difference between cold galvanized electric welding net and hot galvanized electric welding net

What is the difference between cold galvanized electric welding net and hot galvanized electric welding net

Cold galvanized and hot galvanized welding mesh material difference Hot dip galvanizing, that is, after melting the zinc into a liquid state, the material waiting for galvanizing is dipped into it, so that the zinc will form an interinfiltration layer with the material waiting for galvanizing

08

2023

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05

Requirements for performance indexes of hot-dip galvanizing products

Requirements for performance indexes of hot-dip galvanizing products

Main performance indicators 1, mechanical performance indicators first is the mechanical properties of hot-dip galvanized products. Mechanical properties can be defined as the properties of the product that can be confirmed by tensile tests, such as yield strength, tensile strength, elongation, n value, r value, and so on.

08

2023

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05

What to do if there is a problem with hot dip galvanizing?

What to do if there is a problem with hot dip galvanizing?

First of all, a good hot-dip galvanized processing plant must have a considerable scale. Because the hot dip galvanized processing plant needs many production lines, so if the company is small and the equipment is not complete

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2023

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05

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