Method of preparing wearable steel ball

A manufacturing method and technology of wear-resistant steel, applied in the direction of manufacturing tools, furnaces, heat treatment equipment, etc., can solve the problems that mechanical properties cannot fully meet the requirements, high cost, high consumption, etc., and achieve low cost, high hardenability, wear resistance. good performance

Inactive Publication Date: 2009-03-11
CHANGSHU LONGTENG SPECIAL STEEL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, wear-resistant steel balls on the market are generally produced by casting and forging, and steel materials with high alloy content such as chromium need to be selected as raw materials, which require a large amount of alloy materials such as chromium, and the cost is high, and the mechanical properties are also poor. not adequately meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The manufacturing method of the wear-resistant steel ball provided by the embodiment of the present invention comprises the following steps:

[0043] First, select round steel that includes the following components and mass percentages:

[0044] Carbon 0.77

[0045] Silicon 0.33

[0046] Manganese 0.75

[0047] Phosphorus 0.014

[0048] Sulfur 0.022

[0049] Chromium 0.33

[0050] Nickel 0~0.25

[0051] Copper 0~0.25.

[0052] Equipment used: Inclined bottom heating furnace, spiral pass skew rolling mill, spiral quenching cylinder, tempering furnace.

[0053] Processing process: cut the round steel into 2m~3m long and put it into the heating furnace with inclined bottom to heat to 1000-1100℃. After the material is cooked through, it enters the spiral pass skew rolling mill to roll into balls, and then enters the spiral quenching cylinder for quenching , quenching water temperature 25 ~ 45 ℃, low temperature tempering 180 ~ 200 ℃.

[0054] Hardness testing: Take...

Embodiment 2

[0061] The manufacturing method of the wear-resistant steel ball provided by the embodiment of the present invention includes the following steps: firstly, a round steel comprising the following components and mass percentages is selected:

[0062] Carbon 0.7

[0063] Silicon 0.17

[0064] Manganese 0.7

[0065] Phosphorus 0

[0066] Sulfur 0

[0067] Chrome 0.3

[0068] Nickel 0

[0069] Copper 0.

[0070] Equipment used: Inclined bottom heating furnace, spiral pass skew rolling mill, spiral quenching cylinder, tempering furnace.

[0071] Processing process: cut the round steel into 2m~3m long and put it into the heating furnace with inclined bottom to heat to 1000-1100℃. After the material is cooked through, it enters the spiral pass skew rolling mill to roll into balls, and then enters the spiral quenching cylinder for quenching , quenching water temperature 25 ~ 45 ℃, low temperature tempering 180 ~ 200 ℃.

Embodiment 3

[0073] The manufacturing method of the wear-resistant steel ball provided by the embodiment of the present invention includes the following steps: firstly, a round steel comprising the following components and mass percentages is selected:

[0074] Carbon 0.8

[0075] Silicon 0.37

[0076] Manganese 0.8

[0077] Phosphorus 0.35

[0078] Sulfur 0.035

[0079] Chrome 0.55

[0080] Nickel 0.25

[0081]Copper 0.25.

[0082] Equipment used: Inclined bottom heating furnace, spiral pass skew rolling mill, spiral quenching cylinder, tempering furnace.

[0083] Processing process: cut the round steel into 2m~3m long and put it into the heating furnace with inclined bottom to heat to 1000-1100℃. After the material is cooked through, it enters the spiral pass skew rolling mill to roll into balls, and then enters the spiral quenching cylinder for quenching , quenching water temperature 25 ~ 45 ℃, low temperature tempering 180 ~ 200 ℃.

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PUM

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Abstract

The invention provides a method for manufacturing a wear-resistant steel ball, which comprises the following steps: 1) selecting round steel containing the following high carbon low alloy; 2) heating the round steel to between 1, 000 and 1, 100 DEG C and performing thermal insulation for a period of time; 3) diagonally rolling the round steel into a steel ball through a two-roll screw groove; and 4) adding the steel ball into a spiral quenching cylinder, and carrying out low-temperature tempering at a temperature of between 180 and 200 DEG C after the quenching. The method for manufacturing the wear-resistant steel ball selects the round steel with high carbon low alloy as a raw material, does not need to consume a large amount of alloy materials such as chromium, and reduces the cost; and the produced wear-resistant steel ball has the characteristics of high strength, high hardness, high wear resistance, shock resistance and so on.

Description

technical field [0001] The invention relates to a manufacturing method, in particular to a manufacturing method of wear-resistant steel balls. Background technique [0002] Wear-resistant steel balls are one of the indispensable and important auxiliary materials in mining, building materials, coal, chemical and other industrial sectors. Since wear-resistant steel balls are consumables, the annual market demand is huge. [0003] At present, wear-resistant steel balls on the market are generally produced by casting and forging, and steel materials with high alloy content such as chromium need to be selected as raw materials, which require a large amount of alloy materials such as chromium, and the cost is high, and the mechanical properties are also poor. The requirements cannot be fully met. Contents of the invention [0004] In view of the above-mentioned defects, the manufacturing method of the wear-resistant steel ball provided by the present invention selects high-carb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/42C21D9/36
Inventor 季丙元
Owner CHANGSHU LONGTENG SPECIAL STEEL
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