What are the material requirements for processing cd thread screws?
The first is the requirements of the metal surface: 302.304.410 stainless steel screws are more suitable for processing CD patterns, and other materials are not so good;
Generally, medium plasticity is required. If the plasticity is too low, brittle cracks will expand during etching. If the plasticity is too high, a sticky band will occur. Just like the sticky knife, the microstructure and properties of the material must be changed by the vacuum heat treatment process. Process CD pattern.
Remarks: Because general stainless steel screws are not magnetic, it is not easy to assemble; while 410 is magnetic, the screw assembly efficiency is higher than that of 302 stainless steel.
How to choose cd thread screw wire?
CD-patterned screws are widely used. In products in different fields, such as: electronics, electrical appliances, mechanical equipment products, etc., all need to use cd thread screws, so how to choose the wire of the cd thread screw? How to choose the screw? The following editor will give you support.
1. Iron cd pattern screws are actually produced using iron wire. The market is generally iron wire cd pattern screws, they are produced by electroplating white zinc, color zinc, nickel and so on.
2. Stainless steel cd pattern screws are produced using stainless steel wire. The production of stainless steel cd-grain screws does not require electroplating. Generally, it only needs to be cleaned to make the stainless steel cd-grain screws reach bright lines. However, some customers also require electroplating or electroplating of cd-grain screws of different colors for the requirements of stainless steel cd-grain screws.
Commonly used materials for cd thread screws are carbon steel, stainless steel, iron, low alloy steel and non-ferrous metals. However, in some occasions, the fastener material needs to meet the conditions of severe corrosion or high strength, and many stainless steels and ultra-high-strength stainless steels emerge as the times require.