CN106738512A - 斜胶轮胎模具 - Google Patents

斜胶轮胎模具 Download PDF

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CN106738512A
CN106738512A CN201611145575.8A CN201611145575A CN106738512A CN 106738512 A CN106738512 A CN 106738512A CN 201611145575 A CN201611145575 A CN 201611145575A CN 106738512 A CN106738512 A CN 106738512A
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rubber tire
powder
placenta
oblique rubber
teflon
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袁玮骏
黄名兴
唐绍淼
罗丙球
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LIUZHOU TONGWEI MACHINERY Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/42Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/38Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/56Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C32/00Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C32/00Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0084Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C32/00Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0094Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with organic materials as the main non-metallic constituent, e.g. resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00Pneumatic or solid tyres or parts thereof
    • B29L2030/003Plies; Breakers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

本发明涉及一种模具,尤其是斜胶轮胎模具,所述斜胶轮胎模具的成型表面设有斜纹凸台,所述斜纹凸台为的顶面小于斜纹凸台的底面,形成脱模斜角,所述斜纹凸台的顶面及侧面设有特氟龙涂层,所述成型表面设有特氟龙涂层。斜胶轮胎模具,由以下材料按重量份数制成:铝粉110~1200份、石墨烯0.05~0.08份、稀土粉13~15份、硅酸乙酯2~3份、钼粉0.33~0.5份、铬粉1.3~2.5份、钒粉1~3份、硅粉2~5份、碳化钨粉2~4份、钛粉0.3~0.5份。本发明提供的斜胶轮胎模具具有很高的机械强度、良好的耐腐蚀性能、并且模具的韧性也有很大提高、提高了轮胎模具的使用寿命,通过增加特氟龙涂层使脱模容易、耐磨性增加、进一步提高了模具的使用寿命、节约成本。

Description

斜胶轮胎模具
技术领域
本发明涉及一种模具,尤其是斜胶轮胎模具。
背景技术
目前所应用及制造的汽车轮胎模具亦称精铸两半模,轮胎模具的花纹圈部位由整体铸造的铝花纹直接紧固在模体上制成。由于铸铝材料的特性所限,存在缩孔、缩松、铸造针孔等铸造铝合金缺陷,这种轮胎模具的强度、刚度、抗腐蚀性、抗耐磨性及花纹表面光洁度、模具的尺寸精度较差,故而模具的使用寿命较短。为了延长汽车轮胎模具的寿命,通常对轮胎模具的成型表面进行处理,铝制轮胎模具表面处理技术主要有阳极氧化、硬质阳极氧化以及一些其他的涂装膜层。对于铝制轮胎模具的阳极氧化,虽然在表面形成一层氧化膜,该氧化膜在一定程度上提高了铝制轮胎模具的机械性能,但所制备的氧化膜层较薄,与基体的结合力较小,表面硬度一般在300HV左右,只能在很短的时间内对铝制轮胎模具起保护作用;而硬质阳极氧化制备的氧化膜层较普通阳极氧化膜层的硬度有了一定提高,可达450HV,但其工艺要求较为严格,一般电解液的温度须控制在5℃以下。无论普通阳极氧化还是硬质阳极氧化,所用电解液均为酸性电解液,对环境都有一定的污染危害;对铝制轮胎模具的涂装涂层,一般为有机树脂涂层,其需要较高的固化温度,可能会引起轮胎模具的变形,该方法很少应用。
发明内容
为解决上述问题,本发明提供一种合金密度大、质量好、抗腐蚀、高耐磨的斜胶轮胎模具,具体技术方案为:
斜胶轮胎模具,所述斜胶轮胎模具的成型表面设有斜纹凸台,所述斜纹凸台为的顶面小于斜纹凸台的底面,形成脱模斜角,所述斜纹凸台的顶面及侧面设有特氟龙涂层,所述成型表面设有特氟龙涂层。
斜胶轮胎模具,由以下材料按重量份数制成:铝粉110~1200份、石墨烯0.05~0.08份、稀土粉13~15份、硅酸乙酯2~3份、钼粉0.33~0.5份、铬粉1.3~2.5份、钒粉1~3份、硅粉2~5份、碳化钨粉2~4份、钛粉0.3~0.5份。
3.根据权利要求2所述的斜胶轮胎模具,其特征在于,所述铝粉、石墨烯、稀土粉、硅酸乙酯、钼粉、铬粉、钒粉、硅粉、和碳化钨粉的粒径均为40~50um。
斜胶轮胎模具的特氟龙喷涂方法为:
(1)初检,对待处理的模具进行初步检查,通过目测检查模具型腔是否存在损伤、麻面缺陷,如有缺陷,对其进行修理;
(2)高温脱脂,新模具加工组装后型腔内有大量的防锈油脂,采用高温脱脂工艺进行模具清理,在480 ℃高温下烘烤3~4小时,使油脂脱脂老化;
(3)喷砂糙化,即对模具型腔面进行喷砂糙化处理,喷砂后,对模具进行二次目测检,检查模具是否存在缺陷,将80、100和120目石英砂按1:2:1的比例混合使用;
(4)喷涂底层特氟龙,将底层特氟龙涂料均匀地喷到斜胶轮胎模具的内表面上,喷涂时喷枪与斜胶轮胎模具成45°,由外向里匀速喷涂方式进行喷涂,喷涂厚度为2~3um;
(5)底层特氟龙固化,将喷涂完底层特氟龙的斜胶轮胎模具放置到高温烘箱中烘烤,温度为110~130 ℃,烘烤时间为40~50分钟;
(6)面层特氟龙喷涂,将面层特氟龙涂料均匀地喷到斜胶轮胎模具的内表面上,喷涂时喷枪与斜胶轮胎模具成45°,由外向里匀速喷涂方式进行喷涂,喷涂厚度为5~8um;
(7)面层特氟龙固化,将喷涂完底层特氟龙的斜胶轮胎模具放置到高温烘箱中烘烤,温度为360~380 ℃,烘烤时间为2~2.5小时;
(8)冷却,将斜胶轮胎模具放置在高温烘箱中缓慢冷却,冷却时间5~8小时,冷却至室温。
加入各种合金元素可以减少铸件中的气体和夹杂,改善夹杂物形态,使夹杂相趋于球化,有利于夹杂物和气体的排除,也起到了熔体净化效果,而且,合金元素既能起第二相强化作用,还可以起到固溶强化作用,稀土元素能够使固相线温度差减小,降低铝合金的糊状凝固趋势,并且降低合金熔体表面张力,增加熔体流动性,有利于浇注成锭,对工艺性能有着明显的影响。
锰元素在固溶体中的最大溶解度为1.82%,铝合金强度随锰溶解度增加不断增加,同时锰元素具有补充强化作用。加锰后可可降低热裂倾向,锰能阻止铝合金的再结晶过程,提高再结晶温度,并能显著细化再结晶晶粒。
硅元素是铝合金中常见的杂质元素,对合金性能有明显的影响,可有效提高铝合金的铸造性能和耐腐蚀性能,提高合金整体强度。
铬在铝中形成(CrFe)Al7和(CrMn)Al12等金属间化合物,阻碍再结晶的形核和长大过程,对合金有一定的强化作用,还能改善合金韧性和降低应力腐蚀开裂敏感性。但会增加淬火敏感性,使阳极氧化膜呈黄色。
与现有技术相比本发明具有以下有益效果:
本发明提供的斜胶轮胎模具具有很高的机械强度、良好的耐腐蚀性能、并且模具的韧性也有很大提高、提高了轮胎模具的使用寿命,通过增加特氟龙涂层使脱模容易、耐磨性增加、进一步提高了模具的使用寿命、节约成本。
具体实施方式
现通过实施例作进一步说明。
实施例一
斜胶轮胎模具,所述斜胶轮胎模具的成型表面设有斜纹凸台,所述斜纹凸台为的顶面小于斜纹凸台的底面,形成脱模斜角,所述斜纹凸台的顶面及侧面设有特氟龙涂层,所述成型表面设有特氟龙涂层。
实施例二
斜胶轮胎模具,由以下材料按重量份数制成:铝粉110份、石墨烯0.05份、稀土粉13份、硅酸乙酯2份、钼粉0.33份、铬粉1.3份、钒粉1份、硅粉2份、碳化钨粉2份、钛粉0.3份。
实施例三
斜胶轮胎模具,由以下材料按重量份数制成:铝粉1200份、石墨烯0.08份、稀土粉15份、硅酸乙酯3份、钼粉0.5份、铬粉2.5份、钒粉3份、硅粉5份、碳化钨粉4份、钛粉0.5份。
实施例四
斜胶轮胎模具的特氟龙喷涂方法为:
(1)初检,对待处理的模具进行初步检查,通过目测检查模具型腔是否存在损伤、麻面缺陷,如有缺陷,对其进行修理;
(2)高温脱脂,新模具加工组装后型腔内有大量的防锈油脂,采用高温脱脂工艺进行模具清理,在480 ℃高温下烘烤3~4小时,使油脂脱脂老化;
(3)喷砂糙化,即对模具型腔面进行喷砂糙化处理,喷砂后,对模具进行二次目测检,检查模具是否存在缺陷,将80、100和120目石英砂按1:2:1的比例混合使用;
(4)喷涂底层特氟龙,将底层特氟龙涂料均匀地喷到斜胶轮胎模具的内表面上,喷涂时喷枪与斜胶轮胎模具成45°,由外向里匀速喷涂方式进行喷涂,喷涂厚度为2~3um;
(5)底层特氟龙固化,将喷涂完底层特氟龙的斜胶轮胎模具放置到高温烘箱中烘烤,温度为110~130 ℃,烘烤时间为40~50分钟;
(6)面层特氟龙喷涂,将面层特氟龙涂料均匀地喷到斜胶轮胎模具的内表面上,喷涂时喷枪与斜胶轮胎模具成45°,由外向里匀速喷涂方式进行喷涂,喷涂厚度为5~8um;
(7)面层特氟龙固化,将喷涂完底层特氟龙的斜胶轮胎模具放置到高温烘箱中烘烤,温度为360~380 ℃,烘烤时间为2~2.5小时;
(8)冷却,将斜胶轮胎模具放置在高温烘箱中缓慢冷却,冷却时间5~8小时,冷却至室温。

Claims (4)

1.斜胶轮胎模具,其特征在于,所述斜胶轮胎模具的成型表面设有斜纹凸台,所述斜纹凸台为的顶面小于斜纹凸台的底面,形成脱模斜角,所述斜纹凸台的顶面及侧面设有特氟龙涂层,所述成型表面设有特氟龙涂层。
2.根据权利要求1所述的斜胶轮胎模具,其特征在于,由以下材料按重量份数制成:铝粉110~1200份、石墨烯0.05~0.08份、稀土粉13~15份、硅酸乙酯2~3份、钼粉0.33~0.5份、铬粉1.3~2.5份、钒粉1~3份、硅粉2~5份、碳化钨粉2~4份、钛粉0.3~0.5份。
3.根据权利要求2所述的斜胶轮胎模具,其特征在于,所述铝粉、石墨烯、稀土粉、硅酸乙酯、钼粉、铬粉、钒粉、硅粉、和碳化钨粉的粒径均为40~50um。
4.根据权利要求1所述的斜胶轮胎模具,其特征在于,所述特氟龙的喷涂方法为:
(1)初检,对待处理的斜胶轮胎模具进行初步检查,通过目测检查模具型腔是否存在损伤、麻面缺陷,如有缺陷,对其进行修理;
(2)高温脱脂,斜胶轮胎模具加工组装后型腔内有大量的防锈油脂,采用高温脱脂工艺进行模具清理,在480 ℃高温下烘烤3~4小时,使油脂脱脂老化;
(3)喷砂糙化,即对斜胶轮胎模具型腔面进行喷砂糙化处理,喷砂后,对模具进行二次目测检,检查模具是否存在缺陷,将80、100和120目石英砂按1:2:1的比例混合使用;
(4)喷涂底层特氟龙,将底层特氟龙涂料均匀地喷到斜胶轮胎模具的型腔表面上,喷涂时喷枪与斜胶轮胎模具成45°,由外向里匀速喷涂方式进行喷涂,喷涂厚度为2~3um;
(5)底层特氟龙固化,将喷涂完底层特氟龙的斜胶轮胎模具放置到高温烘箱中烘烤,温度为110~130 ℃,烘烤时间为40~50分钟;
(6)面层特氟龙喷涂,将面层特氟龙涂料均匀地喷到斜胶轮胎模具的型腔表面上,喷涂时喷枪与斜胶轮胎模具成45°,由外向里匀速喷涂方式进行喷涂,喷涂厚度为5~8um;
(7)面层特氟龙固化,将喷涂完底层特氟龙的斜胶轮胎模具放置到高温烘箱中烘烤,温度为360~380 ℃,烘烤时间为2~2.5小时;
(8)冷却,将斜胶轮胎模具放置在高温烘箱中缓慢冷却,冷却时间5~8小时,冷却至室温。
CN201611145575.8A 2016-12-13 2016-12-13 斜胶轮胎模具 Pending CN106738512A (zh)

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CN109136666A (zh) * 2018-10-15 2019-01-04 贵州航天风华精密设备有限公司 一种耐腐蚀铝合金及其制备方法
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Application publication date: 20170531