Shandong Longkuang Metal Products Co., Ltd.
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Surface Oxide Cleaning With Stainless Steel Shot For Increased Corrosion Resistance
Stainless steel shot, also known as conditioned stainless steel cut-wire shot, is produced through the following process:
Stainless steel wire is cut into short cylindrical pieces, creating an angular wire-cut shape.
The cut cylindrical pieces undergo a conditioning/passivation process using shot peening/shot blasting to round the edges and corners.
The conditioned shot is classified based on sphericity, commonly using grades G1, G2 and G3 - with G1 being the most spherical.
Internationally, it is known as "conditioned stainless steel cut-wire shot" or "passivated stainless steel cut-wire shot".
The terms "conditioned/passivated" refer to the shot peening/blasting process that rounds the cut shape.
"Stainless steel cut-wire" indicates the starting material (stainless steel wire) and cutting operation.
"Shot" describes the final spherical particulate product.
Recognizing the standardized production method and importance of sphericity classification, international standards organizations like DIN and ISO have established explicit protocols.
This includes defining the terms above and stipulating that sphericity after conditioning be denoted using G1, G2 or G3 grading - allowing for uniform classification of conditioned stainless steel shot globally.
The harmonized process and naming conventions ensure consistent performance of the material for surface preparation applications across borders.
a. It has moderate hardness, is made of pure ingredients and provides wide area coverage per weight.
b. Unlike cast steel shot which can have pores and irregular shapes, stainless steel shot has a longer service life without these downsides.
c. Its performance matches imports but at a much lower price, saving customers costs. One kg replaces 17kg of sand, 100kg of beads, 3-4kg of regular shot, or 3kg of aluminum/zinc shot.
d. Blasting with stainless shot produces castings with smooth, rust-free surfaces requiring no post pickling, improving environmental footprint.
e. Being non-toxic and recyclable, stainless shot is suitable for various substrate materials compared to alternatives. Its non-sparking attributes also make it preferable for hazardous environments.
f. Regular shape allows for higher peening rates and minimal fines creation, lowering waste disposal expenses.
| Parameter | Value |
|---|---|
| Name | Stainless Steel Shot |
| Size | 0.1mm-2.5mm |
| Corrosion Resistance | High |
| Density | 7.85g/m3 |
| Owen's lifespan | 6500 times |
| Abrasion Resistance | Excellent |
| Feature | Moderate Hardness, Pure Ingredients, Large Coverage |
| Cleanliness | Highly Polished |
| Versatility | Suitable For Various Applications |
| Bulk Density | 4.70g/m3 |
Aluminum/zinc alloys, stainless steel plates, non-ferrous castings, stainless steel castings: It focuses on luster without rust/discoloration.
Large/medium/small castings: Surface oxide removal ensures cleanliness and roughness for downstream painting/processing.
Steel plate pretreatment: Used to strip scale, rust, impurities for fabrication.
Industrial machinery: Removes rust, slag, scale to alleviate welding stresses, boost coating adhesion and corrosion protection.
Stainless steel cleaning: Effectiveness depends on size/particle selection for various material plates.
Steel structural component finishing: Suitable for profiles like H-beams, C-channels, angles.
Pipeline anti-corrosion treatment: Raises corrosion resistance and specified rust removal.
Shot peening treatment: Strengthens components including springs, gears, bearings, shafts etc.
Inner packaging: 25kg/bag with inner film bag.
Outer packaging: nylon woven bag, kraft paper bag, carton.
Whole ton packaging: pallet or ton bag.
