Seal device used for pin hole of bar grate block
A technology of sealing device and pin hole, which is applied in the field of sealing device for the pin hole of grating bars, can solve the problems of damaging the thermal conductivity of the sintered composite material, affecting the homogeneity and stability of the sintering process, and uneven ignition of the material surface of the trolley, etc., to achieve Avoid sintering edge effect, stable sintering process and simple structure
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Embodiment 1
[0026] Sealing pins are made of one material.
[0027] The sealing pin can be made of low-carbon steel, medium-carbon steel, high-carbon steel, low-alloy steel, high-alloy steel, heat-resistant steel, and stainless steel. Heat-resistant steel is preferred, and the chemical composition (mass%) of heat-resistant steel is 0.05 %C, 0.15% Si, 0.35% Mn, 0.20% Cr, 0.25% Mo, the total amount of S and P is 0.035%, and the balance is iron and impurities that do not affect performance.
Embodiment 2
[0029] Sealing pins are made of one material.
[0030] The sealing plug can be made of low-carbon steel, medium-carbon steel, high-carbon steel, low-alloy steel, high-alloy steel, heat-resistant steel, and stainless steel. Heat-resistant steel is preferred, and the chemical composition (mass%) of heat-resistant steel is, 0.1 %C, 0.5% Si, 0.60% Mn, 2% Cr, 1% Mo, 0.6% V, 0.2% W, 0.2% Ti, 0.01% B, S and P do not exceed 0.025%, the balance is iron and does not affect performance impurities.
Embodiment 3
[0032] Sealing pins are made of one material.
[0033] The sealing pin can be made of low-carbon steel, medium-carbon steel, high-carbon steel, low-alloy steel, high-alloy steel, heat-resistant steel, and stainless steel. The heat-resistant steel is preferred, and the chemical composition (mass%) of the heat-resistant steel is 0.20 %C, 1.0% Si, 0.90% Mn, 3.0% Cr, 2.50% Mo, 1.8% V, 1.0% W, 0.8% Ti, 0.02% B, S and P do not exceed 0.015%, the balance is iron and does not affect performance impurities.
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