Product Introduction

GS600-2 lost wax investment casting of ductile iron

Investment casting, also known as "lost wax casting", is usually coated with several layers of refractory material on the surface of the wax mold, after hardening and drying, the wax mold is melted and made into a shell, and then roasted, and then poured, and a method of obtaining castings, because the castings obtained have high dimensional accuracy and surface finish, it is also known as "investment mold precision casting". The types of alloys that can be produced by investment casting are carbon steel, alloy steel, heat-resistant alloy, stainless steel, precision alloy, permanent magnet alloy, bearing alloy, copper alloy, aluminum alloy, titanium alloy and ductile iron.

Chinese name: mold precision casting

Other name: lost wax casting

Minimum diameter of casting: 0.5mm

Minimum wall thickness of casting: 0.3mm

Investment Casting

The shape of investment casting is generally more complex, the minimum diameter of the hole can be cast on the casting up to 0.5mm, and the minimum wall thickness of the casting is 0.3mm. In the production, some parts that are originally composed of several parts can be designed into integral parts and cast directly by investment casting by changing the structure of the parts, in order to save processing hours and the consumption of metal materials, so that the structure of the parts is more reasonable.

The weight of investment casting is mostly tens of tens of cows (that is, tens of grams to a few kilograms), too heavy casting with investment casting method production is more troublesome, but the production of large investment casting weight has reached about 800 cows.

Investment casting process

Wax (mold) material treatment

1. process parameters:

1. except the bucket stirring temperature 110-120℃ stirring time 8-12 hours standing temperature 100-110℃ standing time 6-8 hours

2. static bucket static temperature 70-85℃ static time 8-12 hours

3. incubator temperature 48-52℃

4. time 8-24 hours

2. Operating procedures

1. The old wax discharged from the dewaxing kettle is sent to the bucket by pump or hand, and the water is deposited at 105-110 ° C for 6-8 hours to drain away.

2. wax material in 110-120 ℃ under stirring 8-12 hours (https://www.weidianyuedu.com) play more, removal of water.

3. Send the dehydrated wax material to a static bucket at 70-85℃ for insulation. A static bucket for insulation for 8-12 hours.

4. A small amount of new wax can also be added to the static bucket, and the clean wax material can be manually poured into the wax cylinder of the incubator, the holding temperature is 48-52℃, and the holding time is 8-24 hours.

5. or put the recovered wax material in the static bucket into the wax bucket of the pneumatic wax mold injection machine, and press the runner after heat preservation.

Three, the main points of operation

1. strictly according to the recovery process for wax material treatment.

2. in addition to buckets, standing buckets should be timely drainage, sewage.

3. When filling wax into the wax cylinder, the wax should flow slowly into the cylinder wall to prevent dust from entering the air in the wax liquid.

4. the wax tank should be covered in time after filling to avoid dust and other debris falling into.

5. often check the temperature of each barrel to prevent the occurrence of excessive temperature.

6. work site to keep clean.

7. prevent wax liquid splash.

8. no fireworks, beware of fire.

Zhongwei Precision has the following services

Detection Systems

Copper Silica Sol Investment Casting

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