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Apr 17,2026

Characteristics of castings

Can manufacture complex shapes: Castings can produce blanks with complex internal cavities and shapes, such as various boxes, machine tool beds, cylinder blocks, cylinder heads, etc.

Apr 17,2026

Heat treatment technology for machine tool castings

Purpose: To reduce the hardness of metal materials, improve plasticity, and facilitate cutting or pressure processing; Reduce residual stress and improve the uniformity of tissue and composition

Apr 17,2026

What are the main technologies for machining machine tool castings

Characteristics: By utilizing the good rigidity of resin sand molds, the strength of the sand mold is maintained during the initial pouring stage. Through the graphitization expansion during the solidification process of cast iron, shrinkage and porosity defects are effectively eliminated, achieving less riser and no riser casting of gray cast iron and ductile iron parts.

Application fields of machine tool castings

Core components: bed frame, columns, crossbeams, and other supporting structures that determine the rigidity of the machine tool.

2026/04

Manufacturing process of machine tool castings

The dimensional accuracy reaches CT7-CT8 level, with small machining allowance (6-9mm at the guide rail).

2026/04

Materials and characteristics of machine tool castings

Grey cast iron (HT250-300) Application: More than 80% of machine tool castings are used for load-bearing components such as bed frames and bases.

2026/04

Changlong Machinery Factory in Gaoyang County participates in industry exhibitions

Gaoyang County Changlong Machinery Factory made a brilliant appearance with its core casting products and one-stop customized service solutions.

2026/04

Finished product intact

The shape of the casting is quite complex, with many internal cavities, which I thought would be difficult to make. I didn't expect the finished product to be very intact, with a clean interior and no residual sand.

2026/04

Corners perfectly rounded without cutting hands

The lost foam casting parts have almost no molding lines, and can be used as appearance parts after surface treatment. The corners are perfectly rounded without cutting hands. The packaging is also tight, without any damage or deformation.

2026/04

Flatness measured for days with no significant change

I am most afraid of deformation when buying it for use as a precision platform. After receiving it, the flatness was measured for a few days and there was no significant change, indicating that the timeliness processing was done well. During processing, the internal stress was evenly released without any cracks appearing.

2026/04

The quality inspection of castings is an indispensable part of the casting process

Appearance quality: Check the surface roughness, surface defects, dimensional deviations, shape deviations, etc. of the castings.

2026/03

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