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china latest news about Metal plating processes - process design requirements

Metal plating processes - process design requirements

September 25, 2023

1. The electro-zinc plating process should use an environmentally friendly cyanide-free electroplating process; passivation cannot use a process containing hexavalent chromium. Except for fasteners, there cannot be any "sealing" type processing operations in the post-plating treatment process. 2. ...
china latest news about Metal plating processes - terms and definitions

Metal plating processes - terms and definitions

September 23, 2023

Standard tape: refers to an adhesive tape product that complies with ISO2409 and is specially used to test the adhesion of surface coatings. Its adhesion on metal surfaces or organic coating surfaces is not less than (10± 1) N / 25 mm. Customized parts: refers to all materials other than self-made ...
china latest news about How long is the service life of an injection mold? How to evaluate?

How long is the service life of an injection mold? How to evaluate?

September 22, 2023

Generally, ordinary molds are designed for at least 300,000 molds, and the lifespan of many molds can reach 1 million molds. Of course, they need to be well maintained. How to evaluate the service life of an injection mold? First of all, we need to look at what kind of material the product is made ...
china latest news about 7 surface treatment processes for stainless steel: PVD process, sandblasting, chemical and mirror treatment, etc

7 surface treatment processes for stainless steel: PVD process, sandblasting, chemical and mirror treatment, etc

September 21, 2023

Different stainless steel surface treatment processes can make the same material highlight different visual effects and feel characteristics. From a design perspective, need to understand the surface treatment processes of the following seven types of stainless steel. 1. PVD process PVD (Physical ...
china latest news about Selection and marking of plating layers - classification of coating usage conditions

Selection and marking of plating layers - classification of coating usage conditions

September 20, 2023

The usage conditions of coatings are divided into the following three categories according to the degree of climate environment. Category 1: severely corrosive working environment. Category 2: moderately corrosive working environment. Category 3: slightly corrosive working environment. From the ...
china latest news about Selection and marking of plating layers - requirements for plating layers

Selection and marking of plating layers - requirements for plating layers

September 19, 2023

The main purpose of electroplating is to: 1. Protect the surface of metal parts and prevent corrosion. 2. Decorate the appearance of parts to make them beautiful. 3. Improve the working performance of parts. The selection of electroplating layer type and thickness mainly depends on the following ...
china latest news about Coating performance test - testing of coating welding performance

Coating performance test - testing of coating welding performance

September 18, 2023

The solderability of the coating indicates the ease with which solder flows on the surface of the metal to be soldered. Methods to evaluate the weldability of coatings include flow area method, wetting time method and steam test method. Flow area method: This method is to place a certain mass of ...
china latest news about Coating performance test - hydrogen embrittlement test

Coating performance test - hydrogen embrittlement test

September 16, 2023

The early brittle fracture phenomenon of metallic materials under the combined action of hydrogen and stress is called hydrogen embrittlement. Methods for measuring hydrogen embrittlement include delayed failure test, slow bending test and other methods. Delayed destruction test: this method is ...
china latest news about Coating performance test - electroplated layer brittleness test

Coating performance test - electroplated layer brittleness test

September 15, 2023

The brittleness of the coating is an important indicator of the physical properties of the coating. The existence of brittleness often leads to cracking of the coating, reduced bonding strength, and even directly affects the use value of the plated parts. The brittleness of the coating is generally ...
china latest news about Coating performance test - testing of internal stress in coatings

Coating performance test - testing of internal stress in coatings

September 14, 2023

The internal stress of the coating refers to the equilibrium stress inside the coating without external load. Methods used to measure the macroscopic stress of coatings include: slide projection method, resistance strain gauge method, spiral shrinkage meter method, X-ray diffraction method, etc.
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