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Processing method for producing wear-resistant and corrosion-resistant rubber lining slurry pump

A processing method and slurry pump technology, applied in metal processing equipment, abrasives, manufacturing tools, etc., can solve the problems of impeller surface material falling off, section pits, poor toughness, etc.

Inactive Publication Date: 2021-03-12
SANLIAN PUMP IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although ordinary high-chromium white cast iron has high wear resistance, its toughness is poor, and it is easy to cause the surface material of the impeller to fall off when it is subjected to high-speed erosion of large solid particles, and it is easy to form pits due to corrosion on the cross section

Method used

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  • Processing method for producing wear-resistant and corrosion-resistant rubber lining slurry pump
  • Processing method for producing wear-resistant and corrosion-resistant rubber lining slurry pump
  • Processing method for producing wear-resistant and corrosion-resistant rubber lining slurry pump

Examples

Experimental program
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Effect test

Embodiment 1

[0037] see figure 1 , a processing method for producing wear-resistant and corrosion-resistant rubber-lined slurry pumps, comprising the following steps:

[0038] 1) Smelting: First use scrap steel, pig iron with low silicon content, high-carbon ferromanganese, electrolytic copper, and pure nickel to add to the electric furnace for smelting;

[0039] 2) Modification treatment: use Re—V—Ti—Bi—Mg compound modifier to carry out compound modification on molten iron, the total mass fraction of composite modifier is 1.2-2.1%, wherein Re accounts for 0.6-1.0% in mass fraction, V accounts for 0.1-0.2%, Ti accounts for 0.2-0.4%, Bi accounts for 0.1-0.2%, Mg accounts for 0.2-0.3%, and the modifier is added during the pouring process by the flow method;

[0040] 3) Shot blasting treatment: use high-efficiency shot blasting device to quickly clean and strengthen the blade surface;

[0041] 4) Stress-relief annealing: perform stress-relief annealing at 200-280 degrees for 4 hours, and th...

Embodiment 2

[0044] The same as embodiment 1 is not repeated, and the difference with embodiment 1 is:

[0045] see Figure 2-7, the high-efficiency shot blasting device includes a shot blasting chamber 1, a slide rail 14, a support block 11, a hook 12, a dust removal box 3 and a shot blasting machine 15, and the upper end of the shot blasting chamber 1 is provided with a support block 11, and the support The upper end of the block 11 is provided with a symmetrically distributed slide rail 14, the slide rail 14 is provided with a slider 13, the bottom of the slider 13 is provided with a hook 12, and the outside of the shot blasting chamber 1 is provided with a plurality of shot blasting machines. 15. The shot blasting machines 15 are all communicated with the shot blasting chamber 1 through the connecting pipe 16, and the shot blasting chamber 1 and the dust removal box 3 are communicated through the air inlet pipe 32.

[0046] The bottom of the hook 12 is provided with a fixed column 21 ...

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Abstract

The invention belongs to the technical field of slurry pump production and processing, and particularly relates to a processing method for producing a wear-resistant and corrosion-resistant rubber lining slurry pump. The processing method comprises the following steps: (1) performing smelting: adding waste steel, pig iron with lower silicon content, high-carbon ferromanganese, electrolytic copperand pure nickel into an electric furnace for smelting; (2) performing modification treatment: specifically, performing composite modification on the molten iron by using a Re-V-Ti-Bi-Mg composite modifier, wherein the total mass percentage of the composite modifier is 1.2-2.1%, Re accounts for 0.6-1.0%, V accounts for 0.1-0.2%, Ti accounts for 0.2-0.4%, Bi accounts for 0.1-0.2%, Mg accounts for 0.2-0.3%, and the modifier is added by a follow-flow method in the pouring process; (3) performing shot blasting treatment: performing rapid surface cleaning and strengthening on blades by an efficientshot blasting device; (4) performing stress relief annealing: performing stress relief annealing at the temperature of 200-280 DEG C for 4 hours, and then processing a center mounting hole by a mechanical processing method; and (5) performing quenching and tempering: performing heating to 1050 DEG C in a stepped heating manner for quenching, keeping the temperature for 4-6 hours, and then performing tempering at 275 DEG C for 6 hours.

Description

technical field [0001] The invention belongs to the technical field of production and processing of slurry pumps, and in particular relates to a processing method for production of wear-resistant and corrosion-resistant rubber-lined slurry pumps. Background technique [0002] A slurry pump refers to a device that converts electrical energy into kinetic energy and potential energy of the medium by increasing the energy of the solid-liquid mixed medium through the action of centrifugal force (rotation of the impeller of the pump). Mainly applicable to: mines, power plants, dredging, metallurgy, chemicals, building materials and petroleum industries. [0003] During the production and processing of the slurry pump, a shot blasting machine is needed, which uses the high-speed projectiles thrown by the shot blaster to clean or strengthen the casting equipment on the surface of the casting. The shot blasting machine can shake out sand, remove the core and clean the castings at th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/06C21D7/06C21D1/30C21D1/18C21D9/00B24C1/08B24C1/00B24C3/04B24C9/00
CPCB24C1/00B24C1/08B24C3/04B24C9/00B24C9/003C21D1/18C21D1/30C21D7/06C21D9/0068C22C33/006C22C33/06
Inventor 何祥炎张彦明杨文琪崇超
Owner SANLIAN PUMP IND CO LTD