Toothholder and manufacturing method thereof
A tooth base and mass percentage technology, applied in the field of excavator tooth base and its preparation, can solve problems such as difficulty in finding balance
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Embodiment 1
[0012] The composition and mass percentage of the gear holder in this embodiment are: C: 0.19%, Mn: 0.80%, Si: 0.3%, Cr: 0.30%, Al: 0.02%, and the balance is Fe. At the same time, due to the adverse effects of S and P elements on the mechanical properties of the gear seat, it is necessary to ensure that the mass percentage of S element is less than or equal to 0.035%, and the mass percentage of P element is less than or equal to 0.035%.
[0013] As the basic element of alloy steel, C element forms carbides with Fe and Mn, which improves the hardness and wear resistance of steel, and plays an important role in solid solution strengthening. Therefore, a high content of carbon element can directly improve the hardness and wear resistance of the tooth seat, but the C element is an element that reduces the welding performance. This embodiment uses 0.19% by mass of the C element and cooperates with other alloy elements to ensure The welding performance of the tooth seat ensures its ...
Embodiment 2
[0026] The composition and mass percentage of the gear seat in this embodiment are: C: 0.20%, Mn: 1.0%, Si: 0.4%, Cr: 0.4%, Al: 0.03%, and the balance is Fe. At the same time, due to the adverse effects of S and P elements on the mechanical properties of the gear seat, it is necessary to ensure that the mass percentage of S element is less than or equal to 0.035%, and the mass percentage of P element is less than or equal to 0.035%.
[0027] In this embodiment, the gear seat has undergone casting process and heat treatment process, and the heat treatment process adopts the same process conditions as in Example 1, that is, quenching after heating up to 900°C and tempering at 220°C to 250°C after holding for 2-4 hours Temper at low temperature, and keep warm for 2-4 hours after tempering. Test its mechanical properties as shown in Table 2:
[0028] Table 2
[0029]
[0030] After adopting the ratio of this embodiment, the mechanical properties of the tooth seat manufactured...
Embodiment 3
[0032] The composition and mass percentage of the gear seat in this embodiment are: C: 0.22%, Mn: 1.10%, Si: 0.60%, Cr: 0.60%, Al: 0.06%, and the balance is Fe. At the same time, due to the adverse effects of S and P elements on the mechanical properties of the gear seat, it is necessary to ensure that the mass percentage of S element is less than or equal to 0.045%, and the mass percentage of P element is less than or equal to 0.045%.
[0033] In this embodiment, the gear seat has undergone casting process and heat treatment process, and the heat treatment process adopts the same process conditions as in Example 1, that is, quenching after heating up to 900°C and tempering at 220°C to 250°C after holding for 2-4 hours Temper at low temperature, and keep warm for 2-4 hours after tempering. Test its mechanical properties as shown in Table 3:
[0034] table 3
[0035]
[0036] After adopting the ratio of this embodiment, the mechanical properties of the tooth seat manufactu...
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