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Technology for producing composite abrasion-resisting protection block of spiral blade of spiral conveyer

A screw conveyor and screw blade technology, which is applied in the manufacturing process of screw conveyor screw blade composite wear-resistant protection blocks, can solve problems such as prolonging construction time, scrapping, and screw conveyor failure to work normally, so as to improve service life, Effect of improving wear resistance

Inactive Publication Date: 2016-06-29
LUOYANG JIUJIU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the screw conveyor transports sand, gravel and other highly abrasive muck, under the joint action of the wall of the spiral cylinder and the muck, the wear of the screw blade is the most serious, especially the wear on the top of the screw blade; it may cause the spiral The conveyor cannot work normally or even be scrapped, thus affecting the construction efficiency and prolonging the construction time

Method used

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  • Technology for producing composite abrasion-resisting protection block of spiral blade of spiral conveyer
  • Technology for producing composite abrasion-resisting protection block of spiral blade of spiral conveyer
  • Technology for producing composite abrasion-resisting protection block of spiral blade of spiral conveyer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: The main components of the wear-resistant body 4 protective block are by weight %, C is 2.6, Si is 0.3, Mn is 0.8, S is 0.02, P is 0.03, Cr is 26.0, Ni is 0.8, and V is 0.3 and a balanced amount of Fe; the above-mentioned materials are added in proportion to a smelting furnace with a temperature of 1500°C for smelting, until the metal charge is completely melted and the temperature rises to 1480°C, a sample is taken and its composition is analyzed, and then its composition ratio Make minor adjustments to achieve the desired proportions. After being released from the furnace, the cast iron solution in the pouring ladle is deoxidized and modified by adding rare earth elements. The amount of rare earth elements added is 0.15%, and then pouring can be carried out. The pouring temperature of this composite part is carried out at 1350°C. Carry out normalizing and tempering treatment to the finished product, and the heat treatment hardness of the wear-resistant ...

Embodiment 2

[0010] Embodiment 2: The main components of the wear-resistant body 4 protective block are by weight %, C is 3.0, Si is 0.8, Mn is 1.2, S is 0.05, P is 0.07, Cr is 28.0, Ni is 1.0, and V is 0.5 and a balanced amount of Fe; the above-mentioned materials are added in proportion to a smelting furnace with a temperature of 1500°C for smelting, until the metal charge is completely melted and the temperature rises to 1480°C, a sample is taken and its composition is analyzed, and then its composition ratio Make minor adjustments to achieve the desired proportions. After being released from the furnace, the cast iron solution in the pouring ladle is deoxidized and modified by adding rare earth elements. The amount of rare earth elements added is 0.25%, and then pouring can be carried out. The pouring temperature of this composite is carried out at 1450°C. Carry out normalizing and tempering treatment to the finished product, and the heat treatment hardness of the wear-resistant body ...

Embodiment 3

[0011] Embodiment 3: The main components of the wear-resistant body 4 protective block are by weight %, C is 2.8, Si is 0.5, Mn is 1.0, S is 0.03, P is 0.05, Cr is 27.0, Ni is 0.9, and V is 0.4 and a balanced amount of Fe; the above-mentioned materials are added in proportion to a smelting furnace with a temperature of 1500°C for smelting, until the metal charge is completely melted and the temperature rises to 1480°C, a sample is taken and its composition is analyzed, and then its composition ratio Make minor adjustments to achieve the desired proportions. After being released from the furnace, the cast iron solution in the pouring ladle is deoxidized and modified by adding rare earth elements. The amount of rare earth elements added is 0.2%, and then pouring can be carried out. The pouring temperature of this composite part is carried out at 1400°C. Carry out normalizing and tempering treatment to the finished product, and the heat treatment hardness of the wear-resistant b...

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Abstract

The invention relates to a technology for producing a composite abrasion-resisting protection block of a spiral blade of spiral conveyer. The composite abrasion-resisting protection block of the spiral blade of spiral conveyer is composed of a base body (1), a bolt (2), a stud (3) and an abrasion-resisting body (4). A dovetail groove and threaded holes are processed on the base body (1), at least a pair of bolts (2) and studs (3) are connected to the base body (1) through the threaded holes, then an abrasion-resisting body material is poured and compounded onto the base body (1) by means of a casting method, the abrasion-resisting body (4) is a high-chrome alloy cast iron, the main components are C, Si, Mn, S, P, Cr, Ni, V and dosing iron, the heat treatment hardness of the abrasion-resisting body (4) is HRC 55-62, wear resistant performance of a spiral blade can be integrally increased, and the shearing force of a combination surface of the base body (1) and the abrasion-resisting body (4) is greater than 80T.

Description

technical field [0001] The invention relates to a screw conveying machine, in particular to a manufacturing process of a helical blade composite wear-resistant protection block for a screw conveyor. technical background [0002] When the screw conveyor transports sand, gravel and other highly abrasive muck, under the joint action of the spiral cylinder wall and the muck, the wear of the screw blade is the most serious, especially the wear on the top of the screw blade; it may cause the spiral The conveyor cannot work normally or even be scrapped, thus affecting the construction efficiency and prolonging the construction time. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a manufacturing process of a composite wear-resistant protective block that protects the screw blades of the screw conveyor when the screw conveyor transports sand, gravel and other highly abrasive muck. In order to achieve the above object, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10B22D19/08B65G33/26
Inventor 李伟魏清风王汉章陈晓锋高洪辉
Owner LUOYANG JIUJIU TECH