Application of garnet sand in rust removal, descaling and old coating treatment of metal surfaces
Garnet sand has significant application value in rust removal, descaling and old coating treatment of metal surfaces. Its core advantages and specific applications are as follows:
1. Efficient removal ability
Physical property advantages
The Mohs hardness of garnet sand reaches 7.5-8.0, which is higher than most traditional abrasives. It can quickly peel off rust, scale and old coating on the metal surface. Its particles are uniform, which can achieve uniform cleaning, reduce material edge collapse and improve processing efficiency.
Deep cleaning effect
It can remove stubborn pollutants such as oil, microcracks, fingerprints, etc., especially rust and oxide layer, and restore the original luster of metal.
2. Improved surface treatment quality
Roughness control
The compact crystal structure of garnet sand maintains a stable shape during sandblasting, forming an angular rough surface, increasing the metal surface area, and significantly improving the adhesion of the coating or spraying process.
Optimized finish
The surface finish is improved after treatment, which is suitable for precision manufacturing scenarios (such as automobiles and aviation parts) and reduces subsequent processing steps.
3. Environmental protection and economy
Recyclable
Garnet sand can be recycled and reused 3-5 times, reducing the cost of raw materials and meeting the requirements of green manufacturing.
Safety and environmental protection
It does not contain harmful substances such as free silicon, reducing the risk of pollution in the working environment, and is suitable for industrial scenarios with high environmental protection standards.
4. Typical application scenarios
| Industry | Application example |
| Shipbuilding and aircraft manufacturing | Oxide layer cleaning and surface roughening treatment of hull and engine room frame |
| Automotive | Rust removal and polishing of metal parts to enhance the adhesion of electrophoretic coating |
| Industrial Equipment Maintenance | Removal of old coatings and anti-corrosion pretreatment of pipelines, storage tanks and other facilities |
Summary
Garnet sand has become the core material for metal surface pretreatment due to its high hardness, controllable surface treatment effect and environmental protection characteristics. It is widely used in heavy industry, precision manufacturing and other fields, taking into account efficiency and quality requirements. Haixu Abrasives garnet sand sizes:
Sand: 10-20 mesh 20-40 mesh 30-60 mesh 80 mesh 120 mesh 150 mesh 200 mesh
Micro powder
W63 W40 W28 W20 W14 W7 W5
F240 F320 F360 F400 F500 F800 F1000
JIS#280 #320 #400 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000
