Pump Casting

Dandong Dawang Steel Castings Co., Ltd. can produce different types of pump bodies with weights ranging from 10kg to 500kg. The casting process include lost wax casting and sand casting, and the materials include stainless steel, carbon steel, etc. Application areas include water plants, oil depots, gas stations, sewage treatment plants, power plants, heat exchange stations, etc. We have provided various pump products for Germany, Japan, the United States and other countries.

the past work

sample pump casting parts

We can produce different types of pump housing, including positive displacement pump, impeller pump (centrifugal pump, axial flow pump, mixed flow pump, vortex pump), jet pump, impeller types include runner impeller, vane impeller, spiral centrifugal impeller, swirling impeller.

Material: stainless steel, carbon steel, and other alloy steel.

the technology

Pump investment casting Process

Each process of our production is executed in strict accordance with the Standard Operation Procedure (SOP). The main process is as the following: Pouring simulation, Mold development, Raw material inspection, Wax pattern, Shell preparation, Metal pouring, Cleaning and Heat treatment, Inspection, Warehouse packaging, and Shipping.

Mold Development

The technical department develops the mold, and the quality department uses the three coordinates to carry out the dimensional inspection.

Wax Pattern

The workshop uses automatic waxing machines to set the waxing pressure, holding time, etc. and to produce high quality was patterns.

Shell Preparation

The workshop has 4 automatic production lines, able to produce 1800 sets of shells. We use hygrothermograph, aerometer, and PH to monitor humidity, temperature, and concentration of liquor aluminum chloride.

Metal Pouring

4 sets of 500KG furnaces are in production, and 3 sets of 500KG spare furnaces are ready when capacity increases. The operators conduct rigorous tests to fulfill material requirements.

Clean and Heat Treat

The workshop is fully equipped with 8 heat treatment furnaces, 3 quenching furnaces, 1 central shot blasting machine and 11 large shot blasting machines.

Inspection

All blank dimensions are checked using a CMM. We have rockwell hardness machine, dynamic balance instrument, roundness meter, etc. The company's quality department has certified employees to do UT, PT, MT testing.

the technology

Pump sand casting Process

Each process of our production is executed in strict accordance with the Standard Operation Procedure (SOP). The main process is as the following: Pouring simulation, Mold development, Raw material inspection, Modeling (Core-Making), Melting, Metal pouring, Cleaning and Heat treatment, Inspection, Warehouse packaging, and Shipping.

Mold Development

Design and produce molds according to the requirements of the drawings. Generally, wood molds can be used for single-piece production, plastic molds and metal molds are made for mass production, and templates can be made for mass castings. Our mold is mainly made of aluminum.

Modeling (core-making)

Includes modeling (forming the cavity of the casting with molding sand), core-making (forming the inner shape of the casting), and mold matching (putting the core into the cavity and closing the upper and lower flasks). Modeling is a key process in casting.

Melting

According to the required metal composition, the chemical composition is matched, and the appropriate melting furnace is selected to melt the alloy material to form a qualified liquid metal liquid (including qualified composition and qualified temperature)

Metal Pouring

Pour qualified molten metal into the sand box equipped with the mold. The pouring stage has high safety requirement, and we have rigorous process control to protect the safety of our employees.

Clean and Heat Treat

After the molten metal is poured and solidified, the molding sand is removed, and the gate and other attachments are knocked out to form the required casting.

Inspection

All blank dimensions are checked using a CMM. We have rockwell hardness machine, dynamic balance instrument, roundness meter, etc. The company's quality department has certified employees to do UT, PT, MT testing.
PED material certifications we passed for Pump casting

We can provide a variety of steel pumps, and have passed PED material certification (Pressure Equipment Directive 2014/68/EU), AD2000 certification.

EN10213:1.4308, 1.4408, 1.4309,1.4409, 1.4581, 1.4469, 1.0619, 1.6220, 1.4308, 1.4408, 1.4581

AISI: 304,304L,316,316L

ASTM A351: CF3,CF3M,CF8,CF8M

ASTM A743: CG3M

ASTM A995: 5A

ASTM A216: WCA,WCB,WCC

Questions You May Have about pump casting

Canada, USA, Italy, France,  Germany, Japan, South Korea.

Different kinds of steel, including carbon steel, stainless steel, alloy steel, etc.

Steel Casting Services

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