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Material capable of resisting zinc solution corrosive wear and manufacturing method thereof

A technology of anti-corrosion and manufacturing method of zinc liquid, applied in the direction of metal material coating process, coating, melt spraying, etc. Increase zinc consumption and other issues to achieve good resistance to zinc liquid corrosion and wear, improve zinc liquid corrosion resistance, and improve high temperature wear performance.

Inactive Publication Date: 2010-08-04
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the service life of the shaft sleeve can be improved after surface treatment, the process is complicated, the bonding strength between the ceramic layer and the base material of the shaft sleeve is low, and the ceramic layer is easy to break and peel off during use, and its working life is still short.
The frequent replacement or maintenance of the sunken roller sleeve not only reduces the operating rate of the hot-dip galvanizing unit, but also has high labor intensity, which brings a lot of inconvenience to production and operation, and greatly increases the consumption of zinc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] With 150 kilograms of intermediate frequency induction furnace smelting material of the present invention, its concrete process step is:

[0033] ① Mix and heat scrap steel, pig iron, ferrochrome, ferromolybdenum, ferrotungsten, ferroboron, ferrosilicon and ferromanganese;

[0034] ② After adjusting the ingredients before the furnace, the temperature is raised to 1597°C, adding 0.27% of the weight of molten steel for deoxidation, and then out of the furnace;

[0035] ③ The anti-corrosion and wear-resistant material of molten zinc is formed by casting method, and the pouring temperature of molten steel is 1472°C;

[0036] ④ After pouring for 2 hours, open the box and air-cool the casting, remove the pouring riser, and clean the residual roots, flashes and burrs;

[0037] ⑤ The casting is cooled in the furnace after being kept at 900°C for 2 hours, and then rough processed;

[0038] ⑥The casting is finally heated to 1000°C and held for 3 hours, then cooled in 50-80°C oil,...

Embodiment 2

[0044] With 150 kilograms of intermediate frequency induction furnace smelting material of the present invention, its concrete process step is:

[0045] ① Mix and heat scrap steel, pig iron, ferrochrome, ferromolybdenum, ferrotungsten, ferroboron, ferrosilicon and ferromanganese;

[0046] ② After adjusting the ingredients before the furnace, the temperature is raised to 1563°C, adding 0.22% of the weight of molten steel for deoxidation, and then out of the furnace;

[0047] ③The anti-corrosion and wear-resistant material of molten zinc is formed by casting method, and the pouring temperature of molten steel is 1451°C;

[0048] ④ After pouring for 1.2 hours, open the box and air-cool the casting, remove the pouring riser, and clean the residual roots, flashes and burrs;

[0049] ⑤ The casting is cooled in the furnace after being kept at 880°C for 3 hours, and then rough processed;

[0050] ⑥The casting is finally heated to 980°C and held for 4 hours, then cooled in 50-80°C oi...

Embodiment 3

[0056] With 250 kilograms of intermediate frequency induction furnace smelting material of the present invention, its concrete process step is:

[0057] ① Mix and heat scrap steel, pig iron, ferrochrome, ferromolybdenum, ferrotungsten, ferroboron, ferrosilicon and ferromanganese;

[0058] ② After adjusting the composition before the furnace, the temperature is raised to 1584°C, adding 0.35% of the weight of molten steel for deoxidation of aluminum, and then out of the furnace;

[0059] ③ The anti-corrosion and wear-resistant material of molten zinc is formed by casting method, and the pouring temperature of molten steel is 1472°C;

[0060] ④ After pouring for 2.5 hours, open the box and air-cool the casting, remove the pouring riser, and clean the residual roots, flashes and burrs;

[0061] ⑤ The casting is cooled in the furnace after being kept at 920°C for 1 hour, and then rough processed;

[0062] ⑥The casting is finally heated to 1020°C and held for 2 hours, then cooled ...

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Abstract

The invention relates to a method for preparing an anti liquid zinc corrosion wear material and a method for preparation, and belongs to the technology field of material corrosion and wear. The chemical components of the anti liquid zinc corrosion wear material are that carbon is 0.6-0.8 percent by weight, boron is 4.0-7.0 percent by weight, chromium is 4.0-6.0 percent by weight, molybdenum is 4.0-7.0 percent by weight, tungsten is 2.0-5.0 percent by weight, silicon is 0.3-0.6 percent by weight, manganese is 0.3-0.6 percent by weight, sulfur is less than 0.05 percent by weight, phosphorus is less than 0.05 percent by weight, and the allowance is ferric. The anti liquid zinc corrosion wear material of the invention uses an electric furnace to smelt, after being annealed, a casting is roughprocessed, after being quenched in 980-1020 DEG C and tempered in 520-580 DEG C, the casting is finally processed. The anti liquid zinc corrosion wear material of the invention has high hardness in normal temperature, the hardness is capable of reaching to 62-65, the hardness is also capable of reaching 56-58 in 500 DEG C, and the bending strength is 900-1100 MPa. When being eroded and worn, the invention has excellent using effects, and the life of stainless steel is improved by 3-6 times.

Description

technical field [0001] The invention relates to a liquid zinc corrosion and wear resistant material and a manufacturing method thereof, which belong to the technical field of material corrosion and wear. Background technique [0002] Hot-dip pure galvanized products and their alloyed products have excellent corrosion resistance and relatively low cost, and with the advancement of hot-dip galvanized technology, the surface quality of their products is almost comparable to that of electro-galvanized products, so they are widely used in automobiles. has been widely applied. At present, Japanese cars basically use hot-dip galvanized steel sheets as outer panels, and the automobile manufacturing industries in Europe and the United States are also continuously increasing the use of hot-dip galvanized steel sheets. While the demand for automobile sheets, especially the outer sheets of automobiles, is increasing, higher and higher requirements are put forward for the surface qualit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/00C21C7/06C22C38/60C21D1/00C22C38/32C21D6/00
Inventor 符寒光佟宝辉邢建东雷永平王勇
Owner BEIJING UNIV OF TECH