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塑料粘接磁体注射成型技术的研究 总被引:1,自引:0,他引:1
阐述了塑料粘接磁体注射成型工艺、特点,着重分析了粘接剂、磁粉含量、磁场注塑机、模具结构等关键技术对塑料粘接磁体生产与使用的影响. 相似文献
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流体辅助注射成型技术是一种塑料与流体的复合注射技术,它包括气体辅助注射成型和水辅助注射成型2种形式。分别介绍了气体辅助注射成型和水辅助注射成型的工艺过程、设备及特点。 相似文献
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液体硅橡胶的最新应用开发 总被引:1,自引:0,他引:1
液体硅橡胶的注射成型方法(LIMS)已得到广泛普及。该文介绍了液体硅橡胶的镶嵌件成型及与塑料的二元成形。镶嵌件成型用材料的特点是,当型腔未充满时,胶料不会发生固化;而型腔一旦被充满,便会快速固化,实现无废胶边、无流道、无公害及短时间成型。在二元成型方面值得注意的是对被粘物具有选择性的粘合材料,即对金属(模型)无粘接性,但对塑料却具有良好的粘接性的材料。采用选择性粘合材料能实现短时间整体注射成型。 相似文献
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内容简介:本书以问答的形式,全面介绍了常用塑料成型工艺及模具设计制造方面的知识和技能。全书共分塑料概论、塑件的设计、注射成型工艺与成型设备、注射模设计、压缩成型工艺与模具设计、传递成型工艺与模具设计、挤出成型工艺与模具设计、其他成型工艺与模具设计、 相似文献
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本文从技术及应用角度系统地介绍了塑料注射成型、气体辅助注射成型、反应注射成型、挤出成型、吹塑成型和热成型CAE技术的概况、内涵及发展趋势。 相似文献
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《Journal of Adhesion Science and Technology》2013,27(13-14):1747-1761
Polymer–metal hybrids are replacing steel structures in many applications. Combining metals and plastics is, however, complicated because they have very different physical and chemical characteristics. This study characterizes plastic–metal adhesion in insert-injection-molded hybrids. Diaminofunctional silane was used as a coupling agent between thermoplastic urethane and stainless steel. Before silane treatment, various surface treatments, including electrolytic polishing and different oxidation treatments, were applied to the steel inserts to understand better the bonding between silane and steel. The effects of the surface treatments and silane application on plastic–metal adhesion were studied by means of contact angle measurements, adhesion tests, and microscopic characterizations. Electrolytic polishing and oxidation of the steel inserts significantly improved the silane bonding to the steel insert, and consequently the plastic adhesion to steel. 相似文献
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透明储物盒气泡成因数值分析及解决方案 总被引:1,自引:1,他引:1
透明冰箱储物盒在注塑过程中,由于排气不良,导致制件内部产生气泡。运用注塑过程CAE软件C-MOLD对充模过程进行数值模拟,得到了气泡产生的原因;根据其生成原因,提出成型模具的合理设计方案,有效解决因排气不良而产生内部气泡的问题。 相似文献
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Polymer coated sheet metals are widely used for part fabrication in industry. To ensure that the manufactured products can meet the service life requirement, the effect of plastic deformation on coating adhesion is a critical concern. This paper presents an investigation of coating adhesion loss in forming polymer-coated sheet metals. A set of experiments were conducted to evaluate the pull-off strength of coatings before and after uniaxial stretching. The experiments show that axial plastic deformation can cause adhesion to deteriorate. An analytical method based on a virtual interface crack model was developed to evaluate the adhesion potential and was used to quantitatively predict the adhesion loss of two polymer coated sheet metals. The prediction results are in good agreement with the experimental measurements. A parametric study was also conducted to investigate the effects of material properties and coating/substrate thickness on adhesion loss. The results of this study can be used to attain better product design and application development for polymer coated sheet metals. 相似文献
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Darshan Patel S. D. Toliwal J. V. Patel Akshay Gupte Yogesh Patel 《Polymer-Plastics Technology and Engineering》2013,52(3):332-338
The biodegradability of plastic sheets made of mixed proteins was investigated. Soybean, castor and rapeseed DOC (Deoiled Cake) isolated proteins-based plastic sheets were subjected to microbial degradation using Pseudomonas aeruginosa. Results from the microbial degradation showed that plastic sheets prepared from mixture of soybean, castor and rapeseed proteins could support the growth of P. aeruginosa. Biodegradable plastic sheet with composition (80:10:10 and 60% PEG400) degraded much faster than the other four biodegradable plastics sheets under the conditions examined, suggesting that the biodegradability of protein films is associated with the film composition and the extent of covalent cross-linking. 相似文献
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双金属复合管塑性成形技术的应用及发展 总被引:3,自引:1,他引:2
分析了双金属复合管塑性成形的过程与机理。对目前国内外双金属复合管的各种主要塑性成形复合技术进行了分析和比较,对其未来的发展趋势进行了展望。 相似文献
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