CN104962820A - Alloy steel for racing car brake disc and preparation method of alloy steel - Google Patents
Alloy steel for racing car brake disc and preparation method of alloy steel Download PDFInfo
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- CN104962820A CN104962820A CN201510317010.2A CN201510317010A CN104962820A CN 104962820 A CN104962820 A CN 104962820A CN 201510317010 A CN201510317010 A CN 201510317010A CN 104962820 A CN104962820 A CN 104962820A
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- alloy steel
- temperature
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- racing car
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- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910045601 alloy Inorganic materials 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000003723 Smelting Methods 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 229910052718 tin Inorganic materials 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000000470 constituent Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The invention relates to alloy steel for a racing car brake disc and a preparation method of the alloy steel. The alloy steel for the racing car brake disc and the preparation method of the alloy steel are used for solving the problems that traditional alloy steel for the racing car brake disc is low in hardness and poor in tensile strength. The alloy steel for the racing car brake disc comprises the chemical constituents of, by weight, 3.65% of C, 1.925% of Si, 0.9% of Mn, 0.6% of Cu, 0.625% of Cr, 0.08% of Sn, 0.09% of Nb, 0.2% of Mo, 0.75% of BN and the balance Fe.
Description
Technical field
The present invention relates to a kind of racing car alloy steel for braking discs and manufacture method thereof, belong to mechanical alloy preparation field.
Background technology
The most basic function of retarding disc absorbs braking kinetic energy and it is converted into heat energy to be dispersed in air, is the important factor guaranteeing car safety.When other security measuress break down, it is the last guarantee of safe and reliable braking.Therefore, creation and optimization brake disc structure, increase substantially retarding disc and material thermal resistance energy, anti-fatigue performance, there is very large actual application value.
In prior art, producing the steel of auto parts machinery is common middle low levels steel alloy, and because these automobile metal accessories are generally moving partss frequently on using function, wear rate is very high, changes frequent, adds maintenance cost; Search out a kind of raising hardness and wear resisting property, the steel alloy of the middle low levels that piece surface resistance toheat is high is extremely important with regard to what show simultaneously.
Summary of the invention
The present invention is directed to the deficiency that prior art exists, a kind of racing car alloy steel for braking discs and manufacture method thereof are provided, solve the problem that traditional racing car alloy steel for braking discs hardness is low, tensile strength is poor.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of racing car alloy steel for braking discs, by weight percentage, its chemical composition comprises: C:3.65%, Si:1.925%, Mn:0.9%, Cu:0.6%, Cr:0.625%, Sn:0.08%, Nb:0.09%, Mo:0.2%, BN:0.75%, remaining is iron.
A manufacture method for racing car alloy steel for braking discs as claimed in claim 1, is characterized in that comprising the following steps:
(1) with alloy mass percentages, prepare burden by following chemical composition, C:3.65%, Si:1.925%, Mn:0.9%, Cu:0.6%, Cr:0.625%, Sn:0.08%, Nb:0.09%, Mo:0.2%, BN:0.75% puts into smelting furnace melting, smelting furnace temperature is 1450 DEG C, melting 2 hours, then takes out air cooling formation alloy block for subsequent use;
(2) electric furnace put into by iron for subsequent use, temperature is risen to 1580 DEG C, make molten iron is melting, then add the alloy block of step (1), after melting is uniformly mixed, be incubated 30 minutes, again furnace temperature is increased to 1600 DEG C, is incubated after 45 minutes, the liquid in electric furnace is taken out, cool, form alloy bloom;
(4) process: working temperature is risen to 650-680 DEG C, operating pressure is increased to 1.5Mpa, keep operating pressure constant, with 1.5 hours, working temperature is risen to 850 DEG C; Continue keep operating pressure constant, maintenance work temperature at 900 DEG C, soaking time 2 hours; Keep operating pressure constant, working temperature is down to 700 DEG C, then release, and working temperature is down to normal temperature.
The invention has the beneficial effects as follows: the present invention has good thermal conductivity, hot strength, high temperature abrasion resistance and thermal fatigue resistance, alloy mass is light, and hardness is high, and glossiness is good, and shock resistance is strong, can significantly improve braking safety and work-ing life.
Embodiment
Be described principle of the present invention and feature below, example, only for explaining the present invention, is not intended to limit scope of the present invention.
A kind of racing car alloy steel for braking discs, by weight percentage, its chemical composition comprises: C:3.65%, Si:1.925%, Mn:0.9%, Cu:0.6%, Cr:0.625%, Sn:0.08%, Nb:0.09%, Mo:0.2%, BN:0.75%, remaining is iron.
A manufacture method for racing car alloy steel for braking discs as claimed in claim 1, is characterized in that comprising the following steps:
(1) with alloy mass percentages, prepare burden by following chemical composition, C:3.65%, Si:1.925%, Mn:0.9%, Cu:0.6%, Cr:0.625%, Sn:0.08%, Nb:0.09%, Mo:0.2%, BN:0.75% puts into smelting furnace melting, smelting furnace temperature is 1450 DEG C, melting 2 hours, then takes out air cooling formation alloy block for subsequent use;
(2) electric furnace put into by iron for subsequent use, temperature is risen to 1580 DEG C, make molten iron is melting, then add the alloy block of step (1), after melting is uniformly mixed, be incubated 30 minutes, again furnace temperature is increased to 1600 DEG C, is incubated after 45 minutes, the liquid in electric furnace is taken out, cool, form alloy bloom;
(4) process: working temperature is risen to 650-680 DEG C, operating pressure is increased to 1.5Mpa, keep operating pressure constant, with 1.5 hours, working temperature is risen to 850 DEG C; Continue keep operating pressure constant, maintenance work temperature at 900 DEG C, soaking time 2 hours; Keep operating pressure constant, working temperature is down to 700 DEG C, then release, and working temperature is down to normal temperature.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a racing car alloy steel for braking discs, is characterized in that: by weight percentage, its chemical composition comprises: C:3.65%, Si:1.925%, Mn:0.9%, Cu:0.6%, Cr:0.625%, Sn:0.08%, Nb:0.09%, Mo:0.2%, BN:0.75%, remaining is iron.
2. a manufacture method for racing car alloy steel for braking discs as claimed in claim 1, is characterized in that comprising the following steps:
(1) with alloy mass percentages, prepare burden by following chemical composition, C:3.65%, Si:1.925%, Mn:0.9%, Cu:0.6%, Cr:0.625%, Sn:0.08%, Nb:0.09%, Mo:0.2%, BN:0.75% puts into smelting furnace melting, smelting furnace temperature is 1450 DEG C, melting 2 hours, then takes out air cooling formation alloy block for subsequent use;
(2) electric furnace put into by iron for subsequent use, temperature is risen to 1580 DEG C, make molten iron is melting, then add the alloy block of step (1), after melting is uniformly mixed, be incubated 30 minutes, again furnace temperature is increased to 1600 DEG C, is incubated after 45 minutes, the liquid in electric furnace is taken out, cool, form alloy bloom;
(3) process: working temperature is risen to 650-680 DEG C, operating pressure is increased to 1.5Mpa, keep operating pressure constant, with 1.5 hours, working temperature is risen to 850 DEG C; Continue keep operating pressure constant, maintenance work temperature at 900 DEG C, soaking time 2 hours; Keep operating pressure constant, working temperature is down to 700 DEG C, then release, and working temperature is down to normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317010.2A CN104962820A (en) | 2015-06-11 | 2015-06-11 | Alloy steel for racing car brake disc and preparation method of alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317010.2A CN104962820A (en) | 2015-06-11 | 2015-06-11 | Alloy steel for racing car brake disc and preparation method of alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104962820A true CN104962820A (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510317010.2A Pending CN104962820A (en) | 2015-06-11 | 2015-06-11 | Alloy steel for racing car brake disc and preparation method of alloy steel |
Country Status (1)
| Country | Link |
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| CN (1) | CN104962820A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0778355A1 (en) * | 1995-12-07 | 1997-06-11 | Mercedes-Benz Ag | Optimized composition of lamellar graphite gray cast iron for brake disks of utility vehicles |
| CN1653202A (en) * | 2002-05-13 | 2005-08-10 | 斯堪尼亚有限公司 | Gray cast iron alloy and cast internal combustion engine component |
| CN102877003A (en) * | 2012-08-31 | 2013-01-16 | 宁国市金六星研磨材料科技有限公司 | Superfine grinding cast grinding ball and heat treatment process thereof |
| CN103834852A (en) * | 2014-03-19 | 2014-06-04 | 四川大学 | A kind of tin-niobium composite alloy gray cast iron and its production process |
| CN104294140A (en) * | 2014-05-26 | 2015-01-21 | 宁国市鑫煌矿冶配件制造有限公司 | Multi-element high-wear-resistance high-toughness high chromium lining board for ball mills |
-
2015
- 2015-06-11 CN CN201510317010.2A patent/CN104962820A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0778355A1 (en) * | 1995-12-07 | 1997-06-11 | Mercedes-Benz Ag | Optimized composition of lamellar graphite gray cast iron for brake disks of utility vehicles |
| CN1653202A (en) * | 2002-05-13 | 2005-08-10 | 斯堪尼亚有限公司 | Gray cast iron alloy and cast internal combustion engine component |
| JP4137054B2 (en) * | 2002-05-13 | 2008-08-20 | スカニア シーブイ アクチボラグ（パブル） | Gray cast iron alloy and internal combustion engine casting parts |
| CN102877003A (en) * | 2012-08-31 | 2013-01-16 | 宁国市金六星研磨材料科技有限公司 | Superfine grinding cast grinding ball and heat treatment process thereof |
| CN103834852A (en) * | 2014-03-19 | 2014-06-04 | 四川大学 | A kind of tin-niobium composite alloy gray cast iron and its production process |
| CN104294140A (en) * | 2014-05-26 | 2015-01-21 | 宁国市鑫煌矿冶配件制造有限公司 | Multi-element high-wear-resistance high-toughness high chromium lining board for ball mills |
Non-Patent Citations (2)
| Title |
|---|
| 机械加工工艺装备设计手册编委会: "《机械加工工艺装备设计手册》", 30 June 1998, 机械工业出版社 * |
| 童风昭: "《工程材料》", 28 February 1987, 上海交通大学出版社 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |