Q:Why does the precision casting factory not usually make iron castings?

Jiangyin Lin Xing stainless steel (precision manufacturing) Co., Ltd. to provide professional precision casting

Q:How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness

Hot galvanizingGenerally 0.06 mm or more

Q:What is the casting material?

Commonly used gray cast iron, malleable cast iron, ductile iron, cast steel, etc., non-ferrous metal casting copper alloy, casting aluminum alloy, casting zinc alloy, etc..

Q:Which surface is coarser for cast iron or cast steel castings? Why?

The surface of the steel is more rough, because the coating sand cast steel cast iron particles compared with graphite coating degree, the other one is to get a better air permeability and collapsibility of sand, the compaction degree is smaller than iron.

Q:How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.

The material is usually steel material price plus the cost (per ton of 2.5-3 million, plus profit).In the Yangtze River Delta region, generally 304 casting price of about 5-5.5 million / ton.The price will be higher if the parts are complex, or a piece weighs less than 100 grams.

Q:What are the causes of pitting on the surface of a precision casting?

The quality of the shell surface is out of order. Or shot blasting out of question.

Q:Casting parts by shot blasting, spray painting, baking after the formation of very small rust spots, how to solve ah?

The first process is very important. Shot blasting must be thorough. The solution is to wipe the surface of the paint with a release. Re shot

Q:Selection of hydraulic press is the casting parts and steel plate welding, how to choose?

Casting parts in one shape, the overall processing in this regard than steel plate welding better. The same price is much more expensive than steel. Large hydraulic presses seldom have casting parts.

Q:Casting blank in the cooling process to release a large amount of heat energy, what can be recycled?

Casting, do not need to provide a rough casting foundry drawings, according to your chart will put foot margin in the processing needs of the surface, the rest of the size can be found according to the mechanical design manual and manual casting.

Q:What are the general technical requirements for casting parts?

According to the national standard GB/T 9438, there are 8 aspects: 1. chemical composition; 2. delivery status; 3. mechanical properties; 4. dimensional tolerances; 5. weight tolerances; 6. appearance quality; 7. internal quality; 8. casting salvage.