Steel shot used for cleaning and strengthening surface of metal and preparation method thereof
A metal surface and steel shot technology, applied in the field of metal products and their preparation, can solve the problems of short service life, low impact resistance, large hardness deviation, etc., and achieve the effects of good durability, small hardness deviation and moderate surface strength
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0063] Raw materials: the proportion of elements in the wire rod is composed of 0.7% carbon, 0.75% manganese, 0.2% silicon, 0.015% sulfur and 0.02% phosphorus, and the iron makes up the weight percentage to 100%.
[0064] Preparation:
[0065] 1. Select materials according to the above raw material requirements, cold draw the wire rod for 3 times, and then go through weak sulfuric acid dipping and vacuum isothermal annealing heat treatment twice to get semi-finished steel wire;
[0066] 2. Wire drawing: After 5-15 cold drawing, it is drawn into steel wires with different diameters between 0.3-2.0 mm; the hardness range is HV480±25HV.
[0067] 3. Cutting: Use a wire cutter to cut the steel wire into cylindrical sections with the same diameter. The cut section is required to be flat, burr-free, and tail-free.
[0068] 4. Screening: Screening for different nominal sizes of steel shots. The nominal size of the sieve is 0.3-2.0 mm.
[0069] 5. Conduct hardness, density and fatig...
Embodiment 2
[0081] Raw materials: the proportion of elements in the wire rod is composed of 0.75% carbon, 0.7% manganese, 0.25% silicon, 0.02% sulfur and 0.015% phosphorus, and the iron makes up the weight percentage to 100%.
[0082] Preparation:
[0083] 1. Select materials according to the above raw material requirements, cold draw the wire rod for 5 times, and then go through weak sulfuric acid dipping and vacuum isothermal annealing heat treatment twice to obtain semi-finished steel wire;
[0084] 2. Wire drawing: After 5-15 cold drawing, it is drawn into steel wires with different diameters between 0.3-2.0 mm; the hardness range is HV480±25HV.
[0085] 3. Cutting: Use a wire cutter to cut the steel wire into cylindrical sections with the same diameter. The cut section is required to be flat, burr-free, and tail-free.
[0086] 4. Screening after surface rounding and strengthening: Screening for different nominal sizes of steel shots. The nominal size of the sieve is 0.3-2.0 mm.
...
Embodiment 3
[0098] Raw materials: the proportion of elements in the wire rod is composed of 0.72% carbon, 0.8% manganese, 0.3% silicon, 0.01% sulfur and 0.01% phosphorus, and the iron makes up the weight percentage to 100%.
[0099] The preparation method is the same as in Example 2.
[0100] Steel shots for metal surface cleaning and strengthening in four shapes of CW, G1, G2 and G3 are thus obtained. The composition weight ratio of the steel shot used for metal surface cleaning and strengthening is: 0.72% carbon, 0.8% manganese, 0.3% silicon, 0.01% sulfur and 0.01% phosphorus, and the iron makes up the weight percentage to 100%.
[0101]The size distribution ratio data of the steel shot used for metal surface cleaning and strengthening is the same as Table 6. The final pass rate of the steel shot is: CW≤0.6%, G1≤0.5%, G2≤0.5%, G3≤0.5%. Standard nominal size range for metal surface cleaning and strengthening steel shot: 0.30-2.00mm. The hardness grade and hardness range for metal surfa...
PUM
| Property | Measurement | Unit |
|---|---|---|
| size | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More