CN107509387B - 一体式液压蓄能器胶囊的制作方法 - Google Patents

一体式液压蓄能器胶囊的制作方法 Download PDF

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CN107509387B
CN107509387B CN201680003570.3A CN201680003570A CN107509387B CN 107509387 B CN107509387 B CN 107509387B CN 201680003570 A CN201680003570 A CN 201680003570A CN 107509387 B CN107509387 B CN 107509387B
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赵慧江
赵腾宇
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Hebei Siemko Polytron Technologies Inc
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Abstract

一种液压蓄能器胶囊的制作方法,包括以下步骤:在充气的气囊上用胶片贴合成胶囊坯;将胶囊坯放入硫化装置内进行硫化形成胶囊初产品;将胶囊初产品中的充气气囊中气体放掉,取出气囊,并将硫化后的胶囊初产品自然冷却至室温形成胶囊成品。利用这种制作方法制作的胶囊,整体一次硫化成型,壁厚均匀,内外表面均光滑,疲劳寿命长,简化了工艺,产品质量高且稳定性好。

Description

一体式液压蓄能器胶囊的制作方法
技术领域
本发明涉及一种一体式液压蓄能器胶囊的制备方法,属于胶囊制备技术领域。
背景技术
蓄能器胶囊,是胶囊式蓄能器的重要组成部分,现有技术的蓄能器胶囊由橡胶制成,具有可伸缩性,用于储藏压缩后的惰性气体。胶囊内会注入一定气压的氮气,在胶囊外则是充入液压油,胶囊会随着液压油的挤压而变形,从而压缩氮气来蓄能,反之则是释放能量。
如图1所示,蓄能器由耐压壳体、弹性胶囊、充气阀、提升阀、油口等组成,其关键部分是胶囊与壳体,胶囊尤其重要,胶囊是决定产品质量、寿命的关键因素。蓄能器胶囊的功能主要为:存储能量、吸收液压冲击、消除脉动和回收能量四大类。
现有技术的橡胶胶囊充压前后的体积变化不足1倍,不能大量吸收脉动压力和流量中的能量,因此存储能量不足,热膨胀补偿性能差,不能吸收液压冲击,无法消除脉动、降噪。因此存在如下缺陷:1.体积变化量较小,无法有效吸收压力脉动;2.缓和冲击压力的功能不足;3.使用寿命短。
造成上述缺陷的原因是:现有技术的蓄能器胶囊通过体积与外形与胶囊的内芯模具成型,导致成型集聚内应力;硫化后胶囊体积变化量小,无法有效吸收压力脉动;通过有内芯的模具成型后分体硫化,即分体式工艺,有的虽然称为整体式工艺硫化,只是通过粘结后再硫化的方法,依然属于分体式技术,无法解决上述技术缺陷。
发明内容
为克服现有技术中存在的缺点,本发明的发明目的是提供一种一体式液压蓄能器胶囊的制作方法,用该方法制作的胶囊,整体一次硫化成型,简化了工艺。
为实现上述发明目的,本发明提供一种液压蓄能器胶囊的制作方法,其特征在于,包括:在充气的气囊上用胶片贴合成胶囊坯。
还包括将胶囊坯放入硫化装置内进行硫化形成胶囊初产品。
还包括:将胶囊初产品冷却后放掉气囊中的气体并将气囊取出得到胶囊成品。
与现有技术相比,利用本发明提供的液压蓄能器胶囊的制作方法制作的胶囊,整体一次硫化成型,壁厚均匀,内外表面均光滑,疲劳寿命长,简化了工艺,产品质量高且稳定性好。气密封性能较好,能有效避免囊体内的气体泄漏,能够消除压力波动的峰谷值。
附图说明
图1是蓄能器的结构示意图;
图1中:1蓄能器;2胶囊;3油阀门;4气阀门。
具体实施方式
下面结合实施例详细说明本发明。
本发明提供一种液压蓄能器胶囊的制作方法,其包括:在充气的气囊上用胶片贴合成胶囊坯,更为详细地说,使胶片在60℃~70℃的烘胶房里预热3-8小时,优选4小时,然后利用胶片在胶片沿充气的气囊上缠绕多层,形成胶囊初产品。
液压蓄能器胶囊的制作方法还包括将胶囊坯放入硫化装置内进行硫化形成胶囊初产品。
液压蓄能器胶囊的制作方法还包括:胶囊初产品中的充气气囊中气体放掉,取出气囊,并将硫化后的胶囊初产品自然冷却至室温形成胶囊成品。
本发明提供一种液压蓄能器胶囊用胶料,至少由下例重量份的原料制备:丁腈橡胶50-90重量份;聚氯乙烯塑料10-50重量份;氧化锌3-5重量份;硬脂酸1-1.5重量份;石蜡0.5-1重量份;防老剂2.5-3重量份;N220炭黑40-42.5重量份;N774炭黑7.5-10重量份;增塑剂20-22重量份;S-80硫化剂1.5-1.8重量份;DM硫化剂0.85-1.2重量份。
实施例1
本发明实施例1提供的确液压蓄能器胶囊用胶料,至少由下例重量份的原料制备:丁腈橡胶70重量份;聚氯乙烯塑料30重量份;氧化锌3重量份;硬脂酸1重量份;石蜡1重量份;防老剂2.5重量份;N220炭黑40重量份;N774炭黑7.5重量份;增塑剂20重量份;S-80硫化剂1.5重量份;DM硫化剂0.85重量份。
本发明实施例1提供的液压蓄能器胶囊用胶料的制备包括如下步骤:第一步:将所称重量份的丁腈橡胶、聚氯乙烯塑料、氧化锌、硬脂酸、石蜡和4010NA防老剂入密炼机进行混炼,混炼温度控制在80℃,时间约为6min,丁腈橡胶的门尼粘度加工至在55-60之间为宜;第二步:在上述胶料中再加入所称重量份的2/3的N220炭黑和所称重量份的1/2的N774炭黑进行混炼,混炼温度控制在80℃,时间约为6min;第三步;再加入所称重量份的1/3的N220炭黑、所称重量份的1/2的N774炭黑和所称重量份的DOA增塑剂进行混炼,得到母炼胶,混炼温度控制在80℃,时间约为4min;第四步:将母炼胶放入过滤胶机过滤,而后放入开炼机进再加入S-80硫化剂和DM硫化剂进行混炼得到混炼胶;第五步:将混炼胶在热炼机上翻炼,提高胶料的混炼均匀性,进一步增加可塑性;第六步:将混炼胶放入到压延机胶片,再放入挤出机挤出胶片,而后下片冷却。
实施例2
本发明实施例2提供的确液压蓄能器胶囊用胶料,至少由下例重量份的原料制备:丁腈橡胶90重量份;聚氯乙烯塑料50重量份;氧化锌5重量份;硬脂酸1.5重量份;石蜡0.5重量份;防老剂3重量份;N220炭黑40重量份;N774炭黑7.5重量份;增塑剂22重量份;S-80硫化剂1.8重量份;DM硫化剂1.2重量份。
本发明实施例2提供的液压蓄能器胶囊用胶料的制备包括如下步骤:第一步:将所称重量份的丁腈橡胶、聚氯乙烯塑料、氧化锌、硬脂酸、石蜡和4010NA防老剂入密炼机进行混炼,混炼温度控制在83℃,时间约为8min,丁晴橡胶的门尼粘度加工至在55-60之间为宜;第二步:在母炼胶中再加入所称重量份的2/3的N220炭黑和所称重量份的1/2的N774炭黑进行混炼,混炼温度控制在83℃,时间约为8min;第三步;再加入所称重量份的1/3的N220炭黑、所称重量份的1/2的N774炭黑和所称重量份的DOA增塑剂进行混炼,得到母炼胶,混炼温度控制在83℃,时间约为4min;第四步:将母炼胶放入过滤胶机过滤,而后放入开炼机进再加入所称重量份的S-80硫化剂和所称重量份的DM硫化剂进行混炼得到混炼胶;第五步:将混炼胶在热炼机上翻炼,提高胶料的混炼均匀性,进一步增加可塑性;第六步:将混炼胶放入到压延机胶片,再放入挤出机挤出胶片,而后下片冷却。
实施例3
本发明实施例2提供的确液压蓄能器胶囊用胶料,至少由下例重量份的原料制备:丁腈橡胶90重量份;聚氯乙烯塑料50重量份;氧化锌5重量份;硬脂酸1.5重量份;石蜡0.5重量份;防老剂3重量份;N220炭黑40重量份;N774炭黑7.5重量份;增塑剂22重量份;S-80硫化剂1.8份;DM硫化剂1.2重量份。
本发明实施例3提供液压蓄能器胶囊用胶料的制备方法包括:第一步:将所称重量份的丁腈橡胶、聚氯乙烯塑料、氧化锌、硬脂酸、石蜡和4010NA防老剂入密炼机进行混炼,混炼温度控制在77℃,时间约为8min,丁晴橡胶的门尼粘度加工至在55-60之间为宜;第二步:在上述胶料中再加入所称重量份的2/3份的N220炭黑和所称重量份的1/2的N774炭黑进行混炼,混炼温度控制在77℃,时间约为8min;第三步;再加入所称重量份的1/3N220炭黑、所称重量份的1/2的N774炭黑和所称重量份的DOA增塑剂进行混炼,得到母炼胶,混炼温度控制在77℃,时间约为4min;第四步:将母炼胶放入过滤胶机过滤,而后放入开炼机进再加入所称重量份的S-80硫化剂和所称重量份的DM硫化剂进行混炼得到混炼胶;第五步:将混炼胶在热炼机上翻炼,提高胶料的混炼均匀性,进一步增加可塑性;第六步:将混炼胶放入到压延机胶片,再放入挤出机挤出胶片,而后下片冷却。
实施例4
本发明实施例4提供的确液压蓄能器胶囊用胶料,至少由下例重量份的原料制备:丁腈橡胶50重量份;聚氯乙烯塑料10重量份;氧化锌3重量份;硬脂酸1重量份;石蜡1重量份;防老剂3重量份;N220炭黑42.5重量份;N774炭黑7.5份;增塑剂22重量份;S-80硫化剂1.5份;DM硫化剂0.85份。
本发明实施例4提供液压蓄能器胶囊用胶料的制备包括如下步骤:第一步:将所称重量份的丁腈橡胶、聚氯乙烯塑料、氧化锌、硬脂酸、石蜡和4010NA防老剂入密炼机进行混炼,混炼温度控制在85℃,时间约为7min,丁晴橡胶的门尼粘度加工至在55-60之间为宜;第二步:在上述胶料中再加入所称重量份的2/3的N220炭黑和所称重量份的1/2的N774炭黑进行混炼,混炼温度控制在85℃,时间约为7min;第三步;再加入所称重量份的1/3的N220炭黑、所称重量份的1/2的N774炭黑和所称重量份的DOA增塑剂进行混炼,得到母炼胶,混炼温度控制在85℃,时间约为6min;第四步:将母炼胶放入过滤胶机过滤,而后放入开炼机进再加入所称重量份的S-80硫化剂和所称重量份的DM硫化剂进行混炼得到混炼胶;第五步:将混炼胶在热炼机上翻炼,提高胶料的混炼均匀性,进一步增加可塑性;第六步:将混炼胶放入到压延机胶片,再放入挤出机挤出胶片,而后下片冷却。
经测试,利用本发明提供的胶料制备胶囊的技术性能指标如表1:
表1
Figure 735073DEST_PATH_IMAGE002
本发明的橡塑合金胶以丁腈橡胶为主要基材,加入部分聚氯乙烯进行有效改性的材料,从对高分子材料研究角度来看,通过聚氯乙烯(PVC)大分子对丁腈橡胶(NBR)长链上双键的封闭,使得本发明提供的液压蓄能器胶囊用胶料,具有高度饱和的弹性体,具有良好耐油性能(对燃料油、润滑油、芳香系溶剂耐抗性良好),并且由于其高度饱和的结构,使其具良好的耐热性能,优良的耐化学腐蚀性能(对氟利昂、酸、碱的具有良好的抗耐性),优异的耐臭氧性能,较高的抗压缩永久变形性能;同时还具有高强度,高撕裂性能、耐磨性能优异等特点。
本发明提供的液压蓄能器胶囊用胶料除了解决现有技术存在的使用寿命短等技术问题,还使胶囊中的多环芳烃含量完全符合欧盟环保要求,多环芳烃PAHs含量,采用GC-MS方法进行分析检测,结果不超过0.5mg/kg,完全符合欧盟要求,并且在浓油浓溶剂中长期不改变高弹性和密封性,在高温高压环境下长期工作不易老化,保持胶囊的高弹性,提高了其使用寿命。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中 描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下本发明还 会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等同物界定。
工业实用性:
与现有技术相比,利用本发明提供的液压蓄能器胶囊的制作方法制作的胶囊,整体一次硫化成型,壁厚均匀,内外表面均光滑,疲劳寿命长,简化了工艺,产品质量高且稳定性好。气密封性能较好,能有效避免囊体内的气体泄漏,能够消除压力波动的峰谷值。在工业上具有很强的工业实用性和可操作性,能够在工业上实现。

Claims (1)

1.一种液压蓄能器胶囊的制作方法,其特征在于,包括: 使胶片在60℃~70℃的烘胶房里预热,然后利用胶片在充气的气囊上缠绕多层,形成胶囊坯; 将胶囊坯放入硫化装置内进行硫化形成胶囊初产品;将胶囊初产品中的充气气囊中气体放掉,取出气囊,并将硫化后的胶囊初产品自然冷却至室温形成胶囊成品;所述液压蓄能器胶囊用胶料至少由下例重量份的原料制备:丁腈橡胶50-90重量份;聚氯乙烯塑料10-50重量份;氧化锌3-5重量份;硬脂酸1-1.5重量份;石蜡0.5-1重量份;防老剂2.5-3重量份;N220炭黑40-42.5重量份;N774炭黑7.5-10重量份;增塑剂20-22重量份;S-80硫化剂1.5-1.8重量份;DM硫化剂0.85-1.2重量份。
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