共查询到19条相似文献,搜索用时 93 毫秒
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胶塞模具是丁基胶塞生产的基础工艺装备,也是衡量丁基胶塞制造业技术水平的重要标志之一.从胶塞模具生产的产业技术特征和目前我国胶塞模具行业存在的问题入手,阐述了胶塞模具标准化、专业化生产的重大意义. 相似文献
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通过对药用胶塞的结构及用途介绍,探讨了关于胶塞模具的设计及应注意的问题,并阐述了胶塞模具装配与使用过程中的常见问题与处理方法。 相似文献
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胶塞模具是胶塞生产过程中必备的专用装备.是一件精度要求高、加工难度大的产品.一般加工方法很难保证其气密性要求.容易产生漏胶现象,采用镶拼法技术和液压密封原理,利用普通数控设备,从结构和工艺两个方面进行改进,很好地解决了漏胶与成品表面粗糙度的问题,保证了产品质量.降低了生产成本. 相似文献
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通过气冲式胶塞清洗机与意大利进口的胶塞清洗机实际使用情况的综合比较,阐明了气冲式胶塞清洗机对冻干胶塞处理的独特优势。 相似文献
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参照国家药包材标准YBB 00332004—2015《注射剂用胶塞、垫片穿刺落屑测定法》,制定了卤化丁基橡胶塞的穿刺落屑检测方法,从胶塞配方所用煅烧高岭土和胶塞使用时的穿刺针头两个方面,对胶塞穿刺落屑检测的影响因素进行了研究,实验证明:煅烧高岭土产地和穿刺针头的大小、质量对胶塞穿刺落屑均有显著影响。 相似文献
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结合粉针剂生产中涉及卤化丁基橡胶塞的工艺流程,采用因果分析图和潜在的失效模式效果分析工具,从胶塞供应商确认、胶塞采购入库检验、胶塞的清洗/灭菌/干燥、产品的分装/压塞/轧盖、成品五个方面,对涉及胶塞的风险点进行了分析与评估,并对风险等级较高的风险点采取了必要的控制措施,将风险降低至可接受范围内,以保证产品质量和用药安全。 相似文献
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通过对拉环瓶塞结构及成型工艺分析确定了带拉环瓶塞的模具设计方案,并对其分型面设置、顺序分型机构设计、脱模及复位机构设计和模具工作过程进行了阐述。其独特之处在于通过多次利用弹簧(伸缩性)和限位螺钉(板)等机构解决了在同一模具中动、定模的内外型芯先后脱模这一复杂问题。 相似文献
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Akira Okada Yasuhiro Okamoto Adam Clare Yoshiyuki Uno 《The International Journal of Advanced Manufacturing Technology》2014,70(5-8):1515-1521
In compression or injection molding of rubber products, small pieces of residual rubber often remain on the metal mold surface after releasing the product. This is caused by excessive localized adhesion to the mold surface. Therefore, cleaning of metal mold surface must be often performed, which results in longer molding cycle time, and the lifetime of metal mold is often reduced. In this study, the separation forces between molded rubber and metal mold surfaces are measured with a tensile tester to evaluate the releasability of molded rubber from the metal mold surface. Mold surfaces treated by various surface coatings and surface modification methods including EB polishing were tested and compared. Experimental results show that the separation force between molded rubber and metal mold surfaces depends on the true contact area between them and the chemical composition of the metal mold surface. The separation force decreases with a decrease in contact area. The chromium content at the metal mold surface significantly reduces the separation force. EB polishing is one of the most effective surface treatments for metal molds since the real contact area can be decreased while also decreasing the surface roughness of the tool surface in a short time. Electron beam melting is also shown to be an effective method of distributing chromium uniformly on the metal mold surface. 相似文献
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Optimal locations of heaters in a shoe outsole rubber injection mold using FEA and parametric analysis 总被引:1,自引:0,他引:1
Myung-Hun Kim Won-Byong Bae Jeong-Young Han Min-Woo Kim 《International Journal of Precision Engineering and Manufacturing》2010,11(5):733-739
Temperature control of a rubber injection mold is important for the dimensional accuracy of the product. In this study, the
arrangement of mold heater cartridges was optimized by using finite element analysis (FEA) and experiments. First, a heat
transfer analysis was performed about the rubber mold currently used in a factory. The locations of heater cartridges were
modified based on the analytic results. A FE analysis was then performed to improve the rubber mold and experiments were conducted
to validate the FE analysis. The FE analysis was in good agreement with the experimental results. Design factors were selected
for the arrangement of heater cartridges. Based on parametric analysis, we propose an optimal design method for the arrangement
of heater cartridges in the rubber injection mold, thereby improving the outsole mold design. 相似文献
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UG软件实现了CAD/CAM/CAE技术在模具设计中的综合应用,其中Moldwizard模块是用于注射模具自动设计的专业模块。Moldwizard为设计模具的型芯、型腔和滑块等提供了更进一步的建模工具,使模具设计变得更快捷和更容易,其最终结果是创建出与产品参数相关的三维模具,并能用于加工。本文以电话机外壳为例,介绍了运用Moldwizard设计模具的过程,并最终设计出三维模具图,模拟了模具加工仿真过程。 相似文献
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针对骨架油封模具设计周期长的问题,通过对往复式骨架油封进行研究,以模具设计为出发点,对模具中关键分型线的确定方法进行了研究,并分析了余胶槽、顶杆和相关壁厚等关键地方的变形规律,建立了数学模型。采用自顶向下的建模方法对模具总体装配及零件进行建模,依据模具设计规则,从油封三维模型的几何特征中提取构成模具型腔的各个零件及其分型线的关键特征,形成封闭的型腔特征曲面,进而利用这些特征曲面切除装配结构中的各个模板零件内侧特征,获得模具型腔结构特征,完成模具详细设计。该设计方法实现了骨架油封模具随油封尺寸自动变形设计,大大提高了设计效率。 相似文献
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在汽车生产制造领域,模具加工技术占有重要的地位,被称为“汽车工业之母”,汽车的发动机和底盘等重要部件都需要相应的模具。从模具加工工艺的改进角度,对部件汽车模具的加工技巧、模具加工过程中刀具的选型要求等加工工艺进行讨论,重点阐述了大型车辆模具加工的技术要求,介绍了模具的质量检测的要求,探究新时期汽车模具加工技术。 相似文献