Low Carbon Steel Shot
Product introduction：
The production process is the same as the national standard steel shot, using centrifugal granulation technology, because the raw material is low carbon steel, so omit high temperature tempering process, using isothermal tempering process production.
Feature
LOW CARBON STEEL GRANAL
ADVANTAGE COST
• Performance over 20% against high carbon shots
• Less wear of machinery and equipment due to the greater absorption of energy in the impacts in the pieces
• Particles free of defects generated by thermal treatment, fractures or micro cracks
IMPROVING THE ENVIRONMENT
• For its production, no subsequent heat treatment is required
• Powder reduction
• Bainitic microstructure guarantees that they will not break during its useful life
GENERAL APPEARANCE
• The shape of the low carbon steel shot is similar to spherical. The minimal presence of elongated, deformed particles with pores, slag or dirt is possible.
• This does not affect the performance of the shot, it can be confirmed by measuring its performance on the machine.
HARDNESS
• The bainitic microstructure guarantees a high degree of hardness. 90% of the particles are between 40 - 50 Rockwell C.
• The low carbon in balance with the manganese guarantees a long useful life of the particles, thus improving the cleanliness of the pieces, since with mechanical work they increase their hardness.
• The energy of the shot blasting is absorbed mainly by the parts, thus reducing the wear of the machine.
CARBON GRANULATION, HIGH PERFORMANCE
• The use of the low carbon steel shot has scope for machines that have turbines of 2500 to 3000 RPM and speeds of 80 M / S.
• For new equipment that uses 3600 RPM turbines and speeds of 110 M / S, these are requirements to increase productivity.
Application fields：
1. Surface finishing of aluminum zinc die casting and surface cleaning of aluminum sand casting. artificial marble surface spraying and polishing. Cleaning and finishing of high alloy steel casting surface oxide scale, aluminum alloy engine block and other large die casting parts, marble surface effect treatment and antiskid treatment
2. Aluminum zinc die casting, surface cleaning of precision casting, surface roughening before special coating, refined spray polishing of aluminum profile to remove surface extrusion lines, refined spray polishing of copper aluminum pipe surface, and refined spray polishing of stainless steel container and valve.
3. Clean up the cold casting tools, chromium plating dies for forging dies and tires, renovate the pump cover of automobile engine supercharger, strengthen the precision gear and spring of starter, and spray polishing the surface of stainless steel container.
4. Aluminum zinc die casting, motorcycle engine box, cylinder head, carburetor, engine fuel pump shell, intake pipe, car lock. The surface of low pressure die casting wheel profile shall be cleaned and finished before painting. Surface finishing and cleaning of copper aluminum stainless steel stamping parts, investment casting stainless steel parts, etc.
Technical parameters
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Low carbon steel shot and ordinary steel shot contrast |
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LOW CARBON STEEL SHOT |
OTHER HIGH CARBON SHOTS |
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Produced with scrap low in carbon, sulfur and phosphorus |
roduced with any type of scrap. Therefore it is hard but fragile. |
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Bainitic microstructure. Low Carbon Steel Spherical Shot Excellent strong grains and free of cracks are obtained. |
Tuesday's microstructure. |
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Free of defects due to heat treatment since additional treatment is not necessary. |
Heat treatment after fudging causes cracking on its surface. |
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Low Carbon Steel Spherical Shot during blasting operations, the low carbon steel shot does not break into smaller particles and maintain its spherical shape. |
During shot blasting, and as a result of its cracked surface, the shot is broken into large pieces with sharp points in a short period of time. Due to this, high carbon shots generate higher maintenance costs, by producing additional wear to shot blasting machines. |
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Project |
TYPE A |
TYPE B |
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Chemical composition% |
C |
0.15- 0.18% |
0.2-0.23 |
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Si |
0.4-0.8 |
0.35-0.8 |
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Mn |
0.4-0.6 |
0.25-0.6 |
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S |
<0.02 |
<0.02 |
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P |
<0.02 |
<0.02 |
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Hardness |
steel shot |
HRC40-50 |
HRC40-50 |
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Density |
steel shot |
7.4g/cm3 |
7.4g/cm3 |
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Microstructure |
Tempered Martensite Bainite Composite organization |
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Appearance |
Spherical |
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Type |
S70 ,S110, S170, S230, S280, S330, S390, S460, S550, S660, S780 |
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Packing |
Each ton in a separate Pallet and each ton divided in 25KG packs . |
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Durability |
3200-3600 times |
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Density |
7.4g/cm3 |
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.Diameter |
0.2mm,0.3mm,0.5mm,0.6mm,0.8mm,1.0mm,1.2mm,1.4mm,1.7mm,2.0mm,2.5mm |
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Applications |
1.Blast cleaning: Used for blast cleaning of casting, die-casting, forging; sand removal of casting, steel plate, H type steel, steel structure. 2..Rust removal: Rust removal of casting, forging, steel plate, H type steel, steel structure. |
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