Abrasion resistant cast tube with high temperature oxidation resistant anticorrosive coating
A high-temperature oxidation-resistant and anti-corrosion layer technology, applied to anti-corrosion coatings, coatings, pipes, etc., can solve the problems of anti-corrosion coatings that are difficult to balance water resistance and anti-fouling effects, and achieve excellent high-temperature oxidation resistance and friction resistance. Reduce segregation and improve surface quality
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Embodiment 1
[0064] A) Preparation of wear-resistant pipe body
[0065] 1) To obtain materials, select raw materials with the following chemical composition weight percentages:
[0066] C: 1.6%, V: 4.5%,
[0067] W: 9.1%, Mo: 7.6%,
[0068] Cr: 3.8%, RE: 0.15%,
[0069] Mn: 0.7%, Si: 0.05%,
[0070] B: 0.02%, Al: 0.2%,
[0071] Nb: 0.08%, Ni: 0.1%,
[0072] The balance is Fe and trace unavoidable impurities;
[0073] 2) Mix and heat ordinary steel scrap, micro-carbon ferrochromium, ferroniobium, ferronickel, ferrotungsten, ferromolybdenum, ferrochromium, ferroniobium, ferronickel and ferromanganese, add carbon with pig iron or graphite, mix and heat and melt into molten steel After the molten steel is melted, ferrosilicon is added for pre-deoxidation;
[0074] 3) According to the distribution ratio of raw materials, adjust the composition in front of the furnace and raise the temperature to 1580°C, then add aluminum blocks for final deoxidation, and then leave the furnace;
[0075]...
Embodiment 2
[0100] A) Preparation of wear-resistant pipe body
[0101] 1) To obtain materials, select raw materials with the following chemical composition weight percentages:
[0102] C: 2.7%, V: 6.0%,
[0103] W: 6.9%, Mo: 5.3%,
[0104] Cr: 5.4%, RE: 0.23%,
[0105] Mn: 0.6%, Si: 0.08%,
[0106] B: 0.01%, Al: 0.5%,
[0107] Nb: 1.1%, Ni: 0.2%,
[0108] The balance is Fe and trace unavoidable impurities;
[0109] 2) Mix and heat ordinary steel scrap, micro-carbon ferrochromium, ferroniobium, ferronickel, ferrotungsten, ferromolybdenum, ferrochromium, ferroniobium, ferronickel and ferromanganese, add carbon with pig iron or graphite, mix and heat and melt into molten steel After the molten steel is melted, ferrosilicon is added for pre-deoxidation;
[0110] 3) According to the distribution ratio of raw materials, adjust the composition in front of the furnace and raise the temperature to 1600°C, then add aluminum blocks for final deoxidation, and then leave the furnace;
[0111] ...
Embodiment 3
[0136] A) Preparation of wear-resistant pipe body
[0137] 1) To obtain materials, select raw materials with the following chemical composition weight percentages:
[0138] C: 3.7%, V: 8.5%,
[0139] W: 3.2%, Mo: 2.4%,
[0140] Cr: 8.9%, RE: 0.4%,
[0141] Mn: 0.3%, Si: 1.0%,
[0142] B: 0.01%, Al: 0.8%,
[0143] Nb: 2.4%, Ni: 0.3%,
[0144] The balance is Fe and trace unavoidable impurities;
[0145] 2) Mix and heat ordinary steel scrap, micro-carbon ferrochromium, ferroniobium, ferronickel, ferrotungsten, ferromolybdenum, ferrochromium, ferroniobium, ferronickel and ferromanganese, add carbon with pig iron or graphite, mix and heat and melt into molten steel After the molten steel is melted, ferrosilicon is added for pre-deoxidation;
[0146] 3) According to the distribution ratio of raw materials, adjust the composition in front of the furnace and raise the temperature to 1630°C, then add aluminum blocks for final deoxidation, and then leave the furnace;
[0147] 4)...
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