CN106584717A - 车门内饰板注塑模具 - Google Patents
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- 238000002347 injection Methods 0.000 title claims abstract description 29
- 239000007924 injection Substances 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 30
- 238000005266 casting Methods 0.000 claims abstract description 18
- 238000005496 tempering Methods 0.000 claims abstract description 16
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 14
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 14
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 13
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000010791 quenching Methods 0.000 claims description 15
- 235000013312 flour Nutrition 0.000 claims description 13
- 238000013019 agitation Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- 238000000137 annealing Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 230000014759 maintenance of location Effects 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 238000010257 thawing Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 206010057040 Temperature intolerance Diseases 0.000 abstract description 2
- 229910000756 V alloy Inorganic materials 0.000 abstract description 2
- 230000008543 heat sensitivity Effects 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/007—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass injection moulding tools
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract
本发明涉及一种模具,尤其是车门内饰板注塑模具,由以下物质按重量份数制成:铁粉90~110份、石墨烯0.5~1份、稀土粉10~13份、硅酸乙酯3~5份、钼粉3~5份、铬粉3~5份、钒粉1~3份、硅粉2~5份、碳化钨粉2~4份通过添加适量的碳化钨和钒合金元素,防止钢的回火脆性,降低热敏感性,提高回火稳定性,提高模具钢的力学性能。热处理时完成组织转变和消除应力,低温回火消除残余应力,使模具表层具有高的耐疲劳性,而心部具有良好的冲击韧度。这样处理后的模具达到了高温强度和冲击韧度最佳的匹配,使用寿命得到了提高。石墨烯有效提高铸造模具的强度、耐磨损性和热疲劳性。本发明提供的车门内饰板注塑模具注塑表面质量好、模具使用寿命长。
Description
技术领域
本发明涉及一种模具,尤其是车门内饰板注塑模具。
背景技术
车门内饰板注塑模具多采用无痕注塑成型,国外常用的方法是将无痕注塑模模芯剖分为面壳与背板两部分,并且在两者之间加工与型腔表面形状一致的随形槽,将面壳和背板两部分配合起来即形成随形介质通道,但分成两部分的模芯制造复杂,并且存在密封问题;再者由于机械加工时刀具存在切削力,使得随形槽不能够与型腔表面距离太近,否则在切削力的作用下会使型腔表面产生变形,严重影响塑件的成型质量。
发明内容
为解决上述问题,本发明提供一种成型件表面质量好的车门内饰板注塑模具,具体技术方案为:
车门内饰板注塑模具,由以下物质按重量份数制成:铁粉90~110份、石墨烯0.5~1份、稀土粉10~13份、硅酸乙酯3~5份、钼粉3~5份、铬粉3~5份、钒粉1~3份、硅粉2~5份、碳化钨粉2~4份。
优选的,由以下物质按重量份数制成:铁粉95~100份、石墨烯0.6~0.8份、稀土粉11~12份、硅酸乙酯4~4.5份、钼粉4~4.5份、铬粉3.5~4份、钒粉2~2.8份、硅粉2.5~3份、碳化钨粉2.6~3.2份。
车门内饰板注塑模具的制备方法为:
(1)将合适量的铁粉加入到工频电炉中熔炼,设置熔炼温度为1100~1200℃,将铁粉融化成铁水;
(2)根据产品设计,选取合适的配方的比例,称取稀土粉和钼粉,加入到步骤(1)融化后的铁水中;
(3)加入稀土粉和钼粉后,机械搅动2~3分钟;
(4)设置工频电炉的温度为1500~1550℃;
(5)当工频电炉达到设定温度后,取合适的配方的比例,称取钒粉、硅粉、铬粉和硅酸乙酯,称取好后加入到铁水中;
(6)加入钒粉、硅粉、铬粉和硅酸乙酯后,机械搅拌10~15分钟后,根据产品设计,选取合适的配方的比例,称取刚碳化钨粉,加入到铁水中;
(7)加入碳化钨粉后,机械搅拌3~5分钟后,取合适的配方的比例,称取石墨烯,加入到钢水中;
(8)加入石墨烯后,机械搅拌均匀,保持熔炼温度1500~1500℃继续熔炼40分钟;
(9)熔炼后出炉,出炉前将温度降低,使出炉时温度为760~780℃;
(10)出炉后的钢液冷却15~25分钟后,注入砂型中,进行浇铸铸件;
(11)浇铸完成后,自然冷却24小时候,开箱清理铸件;
(12)将清理完的铸件进行常规的热处理;
(13)将热处理完成的铸件进行机加工,根据图纸加工出车门内饰板注塑模具。
车门内饰板注塑模具的热处理方法为:
(1)高温退火,将铸件送到热处理炉中,快速升温,使铸件的温度快速升至870~890℃,进行高温退火保温,保温时间为2~3小时;
(2)低位退火,将热处理炉的温度设为710~730℃,当铸件温度升至设定温度时,进行低位退火保温,保温时间为3~4小时;
(3)关闭热处理炉,使炉温冷却到500℃;
(4)将当热处理炉温度到达500℃时,将铸件取出,防置在空气中自然冷却;
(5)然后进行淬火处理,将冷却的铸件放到热处理炉中,设定温度为820℃,使铸件快速升至设定温度,然后保温15~20分钟;
(6)然后将热处理炉温度设为1050℃,加热时间1小时,使铸件温度缓慢加热到1050℃;
(7)当铸件温度达到1050℃时,保温10分钟;
(8)铸件保温结束后,将铸件从热处理炉中取出,将铸件放入淬火槽中进行淬火,采用20#淬火油淬火,淬火油温度40~50℃;
(9)将淬火后的铸件再次放到热处理炉中进行二次回火,二次回火的温度为580~600℃,二次回火保温时间为2.5小时;
(10)回火保温结束后,将二次回火后的铸件从热处理炉中取出,放置在空气中自然冷却。
通过添加适量的碳化钨和钒合金元素,防止钢的回火脆性,降低热敏感性,提高回火稳定性,提高模具钢的力学性能。
模具钢的铸态组织主要为马氏体、贝氏体、碳化物颗粒和奥氏体组织。模具钢的淬透性非常好,硬度为58 HRC。
热处理时完成组织转变和消除应力,低温回火消除残余应力,使模具表层具有高的耐疲劳性,而心部具有良好的冲击韧度。这样处理后的模具达到了高温强度和冲击韧度最佳的匹配,使用寿命得到了提高。
石墨烯是材质很硬的纳米材料,加入到铸造模具中有效提高铸造模具的强度、耐磨损性和热疲劳性。
与现有技术相比本发明具有以下有益效果:
本发明提供的车门内饰板注塑模具注塑表面质量好、模具使用寿命长。
具体实施方式
现结合实施例对本发明作进一步说明。
实施例一
车门内饰板注塑模具,由以下物质按重量份数制成:铁粉90份、石墨烯1份、稀土粉10份、硅酸乙酯3份、钼粉3份、铬粉3份、钒粉1份、硅粉2份、碳化钨粉2份。
实施例二
车门内饰板注塑模具,由以下物质按重量份数制成:铁粉110份、石墨烯1份、稀土粉13份、硅酸乙酯5份、钼粉5份、铬粉5份、钒粉3份、硅粉5份、碳化钨粉4份。
实施例三
车门内饰板注塑模具,由以下物质按重量份数制成:铁粉95份、石墨烯0.6份、稀土粉11份、硅酸乙酯4份、钼粉4.5份、铬粉3.5份、钒粉2.8份、硅粉2.5份、碳化钨粉3.2份。
实施例四
车门内饰板注塑模具的制备方法为:
(1)将合适量的铁粉加入到工频电炉中熔炼,设置熔炼温度为1100~1200℃,将铁粉融化成铁水;
(2)根据产品设计,选取合适的配方的比例,称取稀土粉和钼粉,加入到步骤(1)融化后的铁水中;
(3)加入稀土粉和钼粉后,机械搅动2~3分钟;
(4)设置工频电炉的温度为1500~1550℃;
(5)当工频电炉达到设定温度后,取合适的配方的比例,称取钒粉、硅粉、铬粉和硅酸乙酯,称取好后加入到铁水中;
(6)加入钒粉、硅粉、铬粉和硅酸乙酯后,机械搅拌10~15分钟后,根据产品设计,选取合适的配方的比例,称取刚碳化钨粉,加入到铁水中;
(7)加入碳化钨粉后,机械搅拌3~5分钟后,取合适的配方的比例,称取石墨烯,加入到钢水中;
(8)加入石墨烯后,机械搅拌均匀,保持熔炼温度1500~1500℃继续熔炼40分钟;
(9)熔炼后出炉,出炉前将温度降低,使出炉时温度为760~780℃;
(10)出炉后的钢液冷却15~25分钟后,注入砂型中,进行浇铸铸件;
(11)浇铸完成后,自然冷却24小时候,开箱清理铸件;
(12)将清理完的铸件进行常规的热处理;
(13)将热处理完成的铸件进行机加工,根据图纸加工出车门内饰板注塑模具。
实施例五
车门内饰板注塑模具的热处理方法为:
(1)高温退火,将铸件送到热处理炉中,快速升温,使铸件的温度快速升至870~890℃,进行高温退火保温,保温时间为2~3小时;
(2)低位退火,将热处理炉的温度设为710~730℃,当铸件温度升至设定温度时,进行低位退火保温,保温时间为3~4小时;
(3)关闭热处理炉,使炉温冷却到500℃;
(4)将当热处理炉温度到达500℃时,将铸件取出,防置在空气中自然冷却;
(5)然后进行淬火处理,将冷却的铸件放到热处理炉中,设定温度为820℃,使铸件快速升至设定温度,然后保温15~20分钟;
(6)然后将热处理炉温度设为1050℃,加热时间1小时,使铸件温度缓慢加热到1050℃;
(7)当铸件温度达到1050℃时,保温10分钟;
(8)铸件保温结束后,将铸件从热处理炉中取出,将铸件放入淬火槽中进行淬火,采用20#淬火油淬火,淬火油温度40~50℃;
(9)将淬火后的铸件再次放到热处理炉中进行二次回火,二次回火的温度为580~600℃,二次回火保温时间为2.5小时;
(10)回火保温结束后,将二次回火后的铸件从热处理炉中取出,放置在空气中自然冷却。
Claims (4)
1.车门内饰板注塑模具,其特征在于,由以下物质按重量份数制成:铁粉90~110份、石墨烯0.5~1份、稀土粉10~13份、硅酸乙酯3~5份、钼粉3~5份、铬粉3~5份、钒粉1~3份、硅粉2~5份、碳化钨粉2~4份。
2.根据权利要求1所述的车门内饰板注塑模具,其特征在于,由以下物质按重量份数制成:铁粉95~100份、石墨烯0.6~0.8份、稀土粉11~12份、硅酸乙酯4~4.5份、钼粉4~4.5份、铬粉3.5~4份、钒粉2~2.8份、硅粉2.5~3份、碳化钨粉2.6~3.2份。
3.根据权利要求2所述的车门内饰板注塑模具,其特征在于,制备方法为:
(1)将合适量的铁粉加入到工频电炉中熔炼,设置熔炼温度为1100~1200℃,将铁粉融化成铁水;
(2)根据产品设计,选取合适的配方的比例,称取稀土粉和钼粉,加入到步骤(1)融化后的铁水中;
(3)加入稀土粉和钼粉后,机械搅动2~3分钟;
(4)设置工频电炉的温度为1500~1550℃;
(5)当工频电炉达到设定温度后,取合适的配方的比例,称取钒粉、硅粉、铬粉和硅酸乙酯,称取好后加入到铁水中;
(6)加入钒粉、硅粉、铬粉和硅酸乙酯后,机械搅拌10~15分钟后,根据产品设计,选取合适的配方的比例,称取刚碳化钨粉,加入到铁水中;
(7)加入碳化钨粉后,机械搅拌3~5分钟后,取合适的配方的比例,称取石墨烯,加入到钢水中;
(8)加入石墨烯后,机械搅拌均匀,保持熔炼温度1500~1500℃继续熔炼40分钟;
(9)熔炼后出炉,出炉前将温度降低,使出炉时温度为760~780℃;
(10)出炉后的钢液冷却15~25分钟后,注入砂型中,进行浇铸铸件;
(11)浇铸完成后,自然冷却24小时候,开箱清理铸件;
(12)将清理完的铸件进行常规的热处理;
(13)将热处理完成的铸件进行机加工,根据图纸加工出车门内饰板注塑模具。
4.根据权利要求1所述的车门内饰板注塑模具,其特征在于,热处理方法为:
(1)高温退火,将铸件送到热处理炉中,快速升温,使铸件的温度快速升至870~890℃,进行高温退火保温,保温时间为2~3小时;
(2)低位退火,将热处理炉的温度设为710~730℃,当铸件温度升至设定温度时,进行低位退火保温,保温时间为3~4小时;
(3)关闭热处理炉,使炉温冷却到500℃;
(4)将当热处理炉温度到达500℃时,将铸件取出,防置在空气中自然冷却;
(5)然后进行淬火处理,将冷却的铸件放到热处理炉中,设定温度为820℃,使铸件快速升至设定温度,然后保温15~20分钟;
(6)然后将热处理炉温度设为1050℃,加热时间1小时,使铸件温度缓慢加热到1050℃;
(7)当铸件温度达到1050℃时,保温10分钟;
(8)铸件保温结束后,将铸件从热处理炉中取出,将铸件放入淬火槽中进行淬火,采用20#淬火油淬火,淬火油温度40~50℃;
(9)将淬火后的铸件再次放到热处理炉中进行二次回火,二次回火的温度为580~600℃,二次回火保温时间为2.5小时;
(10)回火保温结束后,将二次回火后的铸件从热处理炉中取出,放置在空气中自然冷却。
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