Common coatings in industrial production (1)

Performance

characteristics of zinc plating:  

1. The coating is thick and has good corrosion resistance;  

2. The zinc layer obtained by electroplating is relatively pure and corrodes slowly in mist such as acid and alkali, which can effectively protect the steel substrate;  

3. Beautiful and generous, with certain decorative properties;  

4. It has good ductility and can be formed by cold punching, rolling, bending, etc. without damaging the coating. Application

scope:   

Zinc electroplating is low in cost and relatively common in technology. Currently, it has been used in various production and research departments of the national economy. For example, machine manufacturing, electronics, precision instruments, chemical industry, light industry, transportation, weapons, aerospace, atomic energy, etc. are of great significance in the national economy. Mechanical

galvanizing

performance characteristics: 

1. The coating is uniform and bright, and the thickness can be controlled by 

2. The plated parts shall have no hydrogen embrittlement after plating, and no tempering and softening after plating. 

3. When the coating thickness of parts is the same, the corrosion resistance exceeds that of electroplating and hot dip plating.

4. Lower production costs

5. The equipment is simple and easy to operate, has small footprint, low energy consumption, strong adaptability, and can achieve mass production. 6 

. The operating environment is good, no high temperature, dust, and smoke, making clean production easy. 7

. At the same output, the required personnel cost is low and the operation is simple.

Application scope:

Mechanical galvanizing has a wide range of applications. It is not only suitable for galvanizing and anti-corrosion of hardware products, standard parts, fasteners, nail-making, small hardware stamping parts, and high-strength parts, but also widely used in machinery, instrumentation, municipal construction, building materials, mining metallurgy, etc. It is especially suitable for outdoor construction hardware, power transmission fasteners, spring steel stampings, shipbuilding and bridge fasteners that require long-term non-corrosion. <

span style=";font-family: Song Dynasty;line-height:150%;font-size:16px"> Hot dip zinc

performance characteristics:

1. Has a thick dense pure zinc layer covering the steel surface

2. The iron-zincalloy layer is dense and exhibits unique corrosion resistance in marine salt fog atmosphere and industrial atmosphere;

3. Has strong wear resistance;

4. Good ductility, hot plated parts can be formed by cold punching, rolling, wire drawing, bending, etc. without damaging the coating;

5. After hot galvanizing of steel structural parts, it can effectively improve the mechanical properties of the steel substrate, eliminate stress in the steel parts, and facilitate turning of steel structural parts. 6

. The surface is bright, beautiful and flexible. Application

scope:

Hot dip galvanizing is especially suitable for various strong acids, alkali mist and other strong corrosive environments. In industry, it is widely used in agriculture, construction, bridges, transportation and other aspects. It is worth noting that due to the thick coating thickness, hot-dip zinc is not suitable for precision mating parts.

Technical support: Guo Honghua

Editor: Olivia Li