Q:How to improve the surface roughness of casting parts?

One is to improve the accuracy of the model; the two is to improve the molding sand mesh. How much is the other relationship?.

Q:Shandong foundry, casting small pieces of precision casting

Dongying Huayang precision casting factory, the smallest to do 2G pieces.

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 to get rid of casting sand inside casting parts?

Are you saying that in the sand casting cavity? We use the manual blast, he is like a pipe will be automatic shot out of the grit, into the casting cavity, to remove the internal cavity in the purpose of casting sand!

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:Where is the precision casting factory?

Shandong, DongyingThe birthplace of precision casting

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:the parts of the threaded hole is casting, casting the hole directly, and then tapping or casting, and then punch 10When the casting is ready, punch it again before tapping it Is the hole casting good or is it punched and tapped on the drilling machine after casting?

There are several casesThe first hole with a diameter of less than 4MM is generally not done, or as a hole location only for a period of less than 10MM.Second for the big hole, some of the reasons for the holding force, we must increase the slope, direct tapping is unlikely, so it still needs post-processingThird for products with high tightness requirements, some cores need to be made even if they are very small, so they can be tapped directlyFourth, some due to technical requirements, regardless of the size of each other's requirements must be made, there is no wayThe above methods are common, and they will encounter many small problems in actual production.

Q:What's the cause of the choking of the casting?,

2. when casting mold exhaust condition is not good, in the casting material use consider whether and hinder its gas permeability; in the process to consider to release more pores, multi venting; core exhaust is particularly important.