Stone material cutting saw blade steel and its manufacturing method
A technology of stone cutting and manufacturing methods, applied in the direction of manufacturing tools, metal rolling, furnace types, etc., can solve the problems of sheet deformation and ineffective effect, and achieve the goals of reducing deformation, improving red hardness, uniform structure and hardness distribution Effect
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[0073] According to the design idea of the above-mentioned alloy composition, the present invention has smelted 9 furnaces of steel and cast them into steel ingots, the chemical composition of which is shown in Table 4. For comparison, the components produced industrially according to the comparative invention patent 02116753.2 are shown at the same time. The steel ingot is forged into a 65×120mm sample, and then a rolling test is carried out on a small rolling mill to form a test steel plate with a thickness of 10mm and a width of 150mm. The slab heating temperature is 1200°C and the heating time is 120min. The final rolling temperature is 900-940°C, and air-cooled to a coiling temperature of 750°C after rolling.
[0074] The chemical composition of table 4 the present invention and comparative example, wt%
[0075] Example
C
Si
mn
Cr
V
N
Ca
Al
Fe
1
0.45
0.30
1.80
0.15
0.20
0.020
...
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