A kind of anti-rust and heat-resistant special-shaped steel pipe and its preparation method
A special-shaped steel pipe and heat-resistant technology, applied in the field of special-shaped steel pipes, can solve the problems of poor high temperature resistance and low rust resistance, and achieve the effects of low residual stress, low cost and good weldability
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Embodiment 1
[0022] A kind of anti-rust and heat-resistant special-shaped steel pipe, the mass parts of the special-shaped steel pipe are composed as follows: 0.8 parts of carbon, 2 parts of silicon, 10 parts of manganese, 20 parts of nickel, 30 parts of chromium, 2 parts of copper, 0.1 part of sulfur, 0.3 parts of phosphorus 5 parts of nitrogen, 0.3 parts of vanadium, 0.03 parts of boron, 10 parts of lanthanum, 80 parts of iron, and 3 parts of additives.
[0023] Wherein, the composition by mass of the additive is as follows: 16 parts of sodium peroxide, 18 parts of ammonium perchlorate, 6 parts of calcium chloride, 12 parts of borax, 6 parts of sodium hydroxymethyl cellulose, 12 parts of polyacrylamide, 10 parts of ionized water, 10 parts of glycerol.
[0024] The additive adopts the following preparation method: (1) adding each component into the reaction kettle by weight, heating to 70-80°C, stirring for 20-25min, (2) centrifugal filtration, drying at 100-120°C to constant weight , th...
Embodiment 2
[0030] A kind of anti-rust and heat-resistant special-shaped steel pipe, the mass parts of the special-shaped steel pipe are composed as follows: 4 parts of carbon, 3 parts of silicon, 16 parts of manganese, 25 parts of nickel, 36 parts of chromium, 3 parts of copper, 0.3 parts of sulfur, 0.6 parts of phosphorus 8 parts of nitrogen, 1.2 parts of vanadium, 0.1 parts of boron, 16 parts of lanthanum, 100 parts of iron, and 4 parts of additives.
[0031] Wherein, the composition by mass of the additive is as follows: 18 parts of sodium peroxide, 22 parts of ammonium perchlorate, 7 parts of calcium chloride, 14 parts of borax, 8 parts of sodium hydroxymethyl cellulose, 15 parts of polyacrylamide, 15 parts of ionized water, 13 parts of glycerin.
[0032] The additive adopts the following preparation method: (1) adding each component into the reaction kettle by weight, heating to 70-80°C, stirring for 20-25min, (2) centrifugal filtration, drying at 100-120°C to constant weight , the...
Embodiment 3
[0038] A kind of anti-rust and heat-resistant special-shaped steel pipe, the mass parts of the special-shaped steel pipe are composed as follows: 7 parts of carbon, 5 parts of silicon, 20 parts of manganese, 30 parts of nickel, 40 parts of chromium, 4 parts of copper, 0.4 parts of sulfur, 0.8 parts of phosphorus 10 parts of nitrogen, 2 parts of vanadium, 0.2 parts of boron, 20 parts of lanthanum, 100 parts of iron, and 6 parts of additives.
[0039] Wherein, the composition by mass of the additive is as follows: 20 parts of sodium peroxide, 24 parts of ammonium perchlorate, 8 parts of calcium chloride, 16 parts of borax, 10 parts of sodium hydroxymethyl cellulose, 18 parts of polyacrylamide, 20 parts of ionized water, 16 parts of glycerin.
[0040] The additive adopts the following preparation method: (1) adding each component into the reaction kettle by weight, heating to 70-80°C, stirring for 20-25min, (2) centrifugal filtration, drying at 100-120°C to constant weight , the...
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