CN107385313A - 刹车盘的铸造方法 - Google Patents
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- 238000005266 casting Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 80
- 229910052742 iron Inorganic materials 0.000 claims abstract description 38
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
- 238000003723 Smelting Methods 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052796 boron Inorganic materials 0.000 claims abstract description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 9
- 239000011651 chromium Substances 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 9
- 239000011733 molybdenum Substances 0.000 claims abstract description 9
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 9
- 239000010936 titanium Substances 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 9
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims abstract description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 239000011574 phosphorus Substances 0.000 claims description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 8
- 239000005864 Sulphur Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052788 barium Inorganic materials 0.000 claims description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 238000003303 reheating Methods 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/20—Measures not previously mentioned for influencing the grain structure or texture; Selection of compositions therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
- F16D69/027—Compositions based on metals or inorganic oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0004—Materials; Production methods therefor metallic
- F16D2200/0008—Ferro
- F16D2200/0013—Cast iron
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0007—Casting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
本发明公开了一种刹车盘的铸造方法,涉及汽车制造技术领域,包括以下步骤:将铁、碳、硼、锰、钛、钒、钼、磷和硫送入熔炉进行熔炼,加热温度至1150℃时加入铬、铜和碳化硅,再加热温度至1410℃时进行化学成分分析,然后加热温度至1550℃,最后降温至1350℃备用;将铁水反复倒入、倒出浇包,将铁水加热温度至1450℃后倒满浇包中;将浇包中的铁水一半浇注到模具中,加入所述硅钡孕育剂,然后将剩余铁水倒满模具中,冷却后得到刹车盘毛坯,将刹车盘毛坯车削、钻孔即得刹车盘,它可以现有刹车盘易磨损、使用寿命短的问题。
Description
技术领域
本发明涉及汽车制造技术领域,尤其是一种刹车盘的铸造方法。
背景技术
刹车盘是汽车制动系统中的关键零件,同轮毂装配在一起,通过与制动衬片进行干摩擦,产生巨大的摩擦力,降低车轮转速从而减速制动。在高速行驶时,汽车紧急制动刹车盘承受着巨大的的磨损,其质量的好坏直接影响刹车性能以及车辆的安全性能。现有的刹车盘的含碳量过高,存在很多铸造砂眼、孔隙等缺陷,刹车时磨损量大,使用寿命短的问题。
发明内容
本发明提供一种刹车盘的铸造方法,它可以解决现有刹车盘易磨损、使用寿命短的问题。
为了解决上述技术问题,本发明所采用的技术方案包括以下步骤:1)采用下列重量百分比的原料:碳:2.3~2.5%、硼:5~8%、铬:0.6~0.8%、锰:1.5~1.8%、钼:0.5~0.8%、铜:0.5~0.8%、钒:0.15~0.2%、碳化硅:0.2~0.25、硅钡孕育剂:0.3~0.5%、磷:≤0.05%、硫:≤0.03%、钛:≤0.03%,余量为铁;2)将所述铁、碳、硼、锰、钛、钒、钼、磷和硫送入熔炉进行熔炼,进行第一次加热温度至1150℃时加入所述铬、铜和碳化硅,保温60分钟,进行第二次加热温度至1410℃时,保温30分钟进行化学成分分析,进行第三次加热温度至1550℃时,保温20分钟,降温至1350℃得到的铁水保温备用;
3)将步骤2)所得铁水一部分先倒入浇包中,然后立刻把所述浇包内的铁水倒回熔炉内,然后再将铁水倒入所述浇包中,2分钟后,再将所述浇包内的铁水倒回熔炉内,将铁水加热温度至1450℃后倒满所述浇包中;4)将所述浇包中的铁水一半浇注到模具中,加入所述硅钡孕育剂,所述硅钡孕育剂采用下列重量百分比的原料:钡:10%、锆:0.1%、钙:2%、铝:2%、磷:0.05%、硫:0.03%,余量为硅,然后再将所述浇包中剩余铁水倒入模具中,冷却后得到刹车盘毛坯,将所述刹车盘毛坯车削、钻孔即得刹车盘。
由于采用了上述技术方案,本发明与现有技术相比具有如下有益效果:
采用一定比例的金属元素进行熔炼,降低碳含量的同时,保证了刹车盘的硬度,在不同的温度点进行适宜时长的保温,先浇铸一半铁水再加入硅钡孕育剂,有效增加共晶团数防止疲劳断裂,具有耐磨性高、使用寿命长的特点。
具体实施方式
下面结合具体实例对本发明作进一步详述:
实施例一
本实例刹车盘的铸造方法,包括以下步骤:
1)采用下列重量百分比的原料:碳:2.3%、硼:5%、铬:0.6%、锰:1.5~1.8%、钼:0.5%、铜:0.5%、钒:0.15%、碳化硅:0.2、硅钡孕育剂:0.3%、磷:0.05%、硫:0.03%、钛:0.03%,余量为铁;
2)将所述铁、碳、硼、锰、钛、钒、钼、磷和硫送入熔炉进行熔炼,进行第一次加热温度至1150℃时加入所述铬、铜和碳化硅,保温60分钟,进行第二次加热温度至1410℃时,保温30分钟进行化学成分分析,进行第三次加热温度至1550℃时,保温20分钟,降温至1350℃得到的铁水保温备用;
3)将步骤2)所得铁水一部分先倒入浇包中,然后立刻把所述浇包内的铁水倒回熔炉内,然后再将铁水倒入所述浇包中,2分钟后,再将所述浇包内的铁水倒回熔炉内,将铁水加热温度至1450℃后倒满所述浇包中;
4)将所述浇包中的铁水一半浇注到模具中,加入所述硅钡孕育剂,所述硅钡孕育剂采用下列重量百分比的原料:钡:10%、锆:0.1%、钙:2%、铝:2%、磷:0.05%、硫:0.03%,余量为硅,然后再将所述浇包中剩余铁水倒入模具中,冷却后得到刹车盘毛坯,将所述刹车盘毛坯车削、钻孔即得刹车盘。
本实施例所得刹车盘的力学性能为:抗拉强度931N/mm2,屈服强度798N/mm2,硬度327HB,冲击韧性20AKV。
实施例二
本实例刹车盘的铸造方法,包括以下步骤:
1)采用下列重量百分比的原料:碳:2.5%、硼:8%、铬:0.8%、锰:1.8%、钼:0.8%、铜:0.8%、钒:0.2%、碳化硅:0.25、硅钡孕育剂:0.5%、磷:0.05%、硫:0.03%、钛:0.03%,余量为铁;
2)将所述铁、碳、硼、锰、钛、钒、钼、磷和硫送入熔炉进行熔炼,进行第一次加热温度至1150℃时加入所述铬、铜和碳化硅,保温60分钟,进行第二次加热温度至1410℃时,保温30分钟进行化学成分分析,进行第三次加热温度至1550℃时,保温20分钟,降温至1350℃得到的铁水保温备用;
3)将步骤2)所得铁水一部分先倒入浇包中,然后立刻把所述浇包内的铁水倒回熔炉内,然后再将铁水倒入所述浇包中,2分钟后,再将所述浇包内的铁水倒回熔炉内,将铁水加热温度至1450℃后倒满所述浇包中;
4)将所述浇包中的铁水一半浇注到模具中,加入所述硅钡孕育剂,所述硅钡孕育剂采用下列重量百分比的原料:钡:10%、锆:0.1%、钙:2%、铝:2%、磷:0.05%、硫:0.03%,余量为硅,然后再将所述浇包中剩余铁水倒入模具中,冷却后得到刹车盘毛坯,将所述刹车盘毛坯车削、钻孔即得刹车盘。
本实施例所得刹车盘的力学性能为:抗拉强度929N/mm2,屈服强度796N/mm2,硬度325HB,冲击韧性20.5AKV。
Claims (1)
1.一种刹车盘的铸造方法,其特征在于包括以下步骤:
1)采用下列重量百分比的原料:碳:2.3~2.5%、硼:5~8%、铬:0.6~0.8%、锰:1.5~1.8%、钼:0.5~0.8%、铜:0.5~0.8%、钒:0.15~0.2%、碳化硅:0.2~0.25、硅钡孕育剂:0.3~0.5%、磷:≤0.05%、硫:≤0.03%、钛:≤0.03%,余量为铁;
2)将所述铁、碳、硼、锰、钛、钒、钼、磷和硫送入熔炉进行熔炼,进行第一次加热温度至1150℃时加入所述铬、铜和碳化硅,保温60分钟,进行第二次加热温度至1410℃时,保温30分钟进行化学成分分析,进行第三次加热温度至1550℃时,保温20分钟,降温至1350℃得到的铁水保温备用;
3)将步骤2)所得铁水一部分先倒入浇包中,然后立刻把所述浇包内的铁水倒回熔炉内,然后再将铁水倒入所述浇包中,2分钟后,再将所述浇包内的铁水倒回熔炉内,将铁水加热温度至1450℃后倒满所述浇包中;
4)将所述浇包中的铁水一半浇注到模具中,加入所述硅钡孕育剂,所述硅钡孕育剂采用下列重量百分比的原料:钡:10%、锆:0.1%、钙:2%、铝:2%、磷:0.05%、硫:0.03%,余量为硅,然后再将所述浇包中剩余铁水倒入模具中,冷却后得到刹车盘毛坯,将所述刹车盘毛坯车削、钻孔即得刹车盘。
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