2023/11/14
How to mass-produce sandblasting machine spare parts
Using a molding machine to make sand molds, metal liquid is then injected into the sand molds to form the desired part shape. A sandblasting machine is a device used to clean and polish the surface of castings; it requires components that are capable of withstanding temperature, pressure, and high-speed operation, such as nozzles, valves, blades, liners, distributors, and control cages.
The process for producing sandblasting machine components is as follows:
Step one
Choose the appropriate alloy material based on the function and specifications requirements of the sandblasting machine parts. The choice of different alloy materials will affect the performance and cost of the parts, so it needs to be decided based on market demand and competitiveness.
Second step
Appropriate alloy raw material composition, and the addition of ingredients into the melting furnace to heat and melt the alloy raw material to the required casting temperature. Before the casting is completed, a pre-furnace analysis is conducted to confirm whether the composition meets the standards, and then degassing and de-ashing operations are carried out to ensure the purity and fluidity of the iron-water alloy material.
Step 3
When the iron water reaches the tempering temperature, it is injected into the sand mold cavity and quickly cooled to solidify, forming the shape and size of the part. The sand mold must have a good pouring mouth design to avoid casting defects such as air holes, sand holes, slag holes, shrinkage holes, and misrun.
Step 4
After the mold is cooled and solidified, the disassembled mold is cleaned of sand and the casting parts are removed. The excess burrs, splinters, and casting spatter are also removed. This step requires the use of cutting, grinding, and other tools and equipment to improve the appearance quality and precision of the parts.
Step 5
The subsequent processing of metal parts, such as heat treatment, surface treatment, and machining, is carried out to improve the strength, wear resistance, and precision of the parts. The method and extent of subsequent processing are determined based on the usage environment and requirements of the parts, such as whether corrosion resistance, rust prevention, or wear resistance are required.
Step 6
Quality checks are conducted on casting components, such as dimensional measurements, hardness testing, and tensile tests, to ensure that the parts meet the requirements for use with the sandblasting machine. The methods and standards for quality checks are determined based on customer needs and regulations, such as whether or not they need to meet relevant international or domestic certifications.
How to ensure the quality of sandblasting machine spare parts
Sandblasting machine spare parts are one of the important products in foundry factories. They need to possess the performance of temperature resistance, pressure resistance, and high-speed operation to adapt to the working environment of sandblasting machines. To ensure the quality and lifespan of sandblasting machine spare parts, foundry factories need to choose the following
Material selection
Choose the appropriate alloy material, such as high-chromium cast iron and high-speed steel, based on the function and specifications requirements of the sandblasting machine parts. The choice of alloy material will affect the performance and cost of the parts, so it needs to be decided based on market demand and competitiveness.
Mould design
The design of the mold structure and molding method should be reasonable to conform to the shape and dimensions of the sandblasting machine parts. The mold design will affect the flow, filling, and defect generation of the iron-steel material, so it needs to be designed based on the complexity and precision of the component.
Cast parameters
The appropriate melting temperature, degassing and deashing of the iron solution, and the pouring speed and time ensure that the iron solution fills the sand model cavity quickly and uniformly, and cools down quickly to solidify.
Follow-up procedures
Choose appropriate post-processing methods, such as heat treatment, surface treatment, and machining, to improve the strength, wear resistance, and precision of the parts. The post-processing method will affect the part’s performance and appearance, so it needs to be selected based on the part’s usage environment and requirements.
Method of mass testing
Choose suitable quality inspection methods, such as visual inspection, dimensional measurement, hardness testing, and tensile testing, to ensure that the components meet the requirements for use with the sandblasting machine. Quality inspection methods can affect the part's pass rate and customer trust, so they need to be selected based on customer needs and regulations.
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