陶瓷模具制作的几种方法

陶瓷模具制作作为陶瓷生产中重要的一个环节,倍受陶瓷生产者的关注。陶瓷模具质量的优劣直接影响到产品的质量。本文从陶瓷模具制作过程中可能出现的问题出发,详细阐述了陶瓷模具制作的几大要领。     

略谈压砖机钢模的加工制作

近年来,国内许多企业引进大吨位自动压砖机,易损件模具的加工制作较为突出的主要问题。模具的质量及使用寿命直接反映所引进设备的经济效益,某些厂家未能解决模具加工制作问题,导致进口压砖机停机停产的现象并不少见,陶瓷机械技术人员对模具的加工制作做了大量工作,取得了很多宝贵的经验。本文谨以模具加工制作的实际谈谈模具对生坯质量的影响,与同志们商榷。     

聚氨酯弹性体内衬模具在陶瓷生产中的应用

介绍了聚氨酯弹性体用作模具内衬的制作工艺，对模具及陶瓷质量影响因素加以讨论．     

基于逆向工程的紫砂茶壶模具的制作方法

目前紫砂茶壶模具制作仍然采用的是传统手工方法。该方法工人工作量大,效率低。逆向工程技术在很多领域已得到应用。将逆向工程技术应用到紫砂茶壶的模具制作中,为模具制作提供了一条先进、快速的制作方法。该方法也可为其它陶瓷艺术品模具制作所参考。     

数控技术和其他材料在陶瓷制模中的应用

<正>陶瓷原本源于中国。但现阶段,我国陶瓷生产的水平却远远落后于德、英、法、日等国。影响我国陶瓷产品质量的原因很多,其中,落后的模具制作方法是一个重要的原因。我国目前模具制作的流程大致有四个环节:1、模具工在得到设计图纸后,根据自己的理解,用石膏制作成阳模;2、     

美国研制成功玻璃钢专用陶瓷填料

最近,美国研制成功一种玻璃钢专用陶瓷填料,用于玻璃钢模具制作及船体制造,获得成功。据技术测试,添加了这种陶瓷填料的树脂,其硬度比胶衣或玻璃纤维层积的硬度高出一倍多。将这种陶瓷填料用于制作玻璃钢模具,模具在脱模或受硬物撞击时,表面不会产生裂纹,可减少修补,延长模具寿命,同时可防止方格布纹印到模具表面,提高产品质量,又能防止模具胶     

α-半水石膏用于陶瓷模具试验小结

一、前言在陶瓷生产过程中,一般都是采用熟石膏制作模具.由于生产路线不同,熟石膏又有β一半水石膏和α一半水石膏之分.目前,国内陶瓷厂主要采用以天然石膏为原料制得的β一半水石膏制作模具.但是,这种石膏模具强度低、耐磨性差、容易损坏,以致成本较高.而且,在烘烤法生产β一半水石膏的过程中粉尘较大,既影响职工身体,又影响陶瓷质量.为此,国内一些陶瓷厂近些年来正在进行α一半水石膏以及其他材料制作陶瓷模具的试验研究工作.我国天然石膏资源主要集中在青海、甘肃及山西一带,资源虽然丰富,但在采矿和运输中仍然存在着不少问题.随着我国化学工业的发展,产生着大量的各种化学石膏,如何合理地处理这些化学石膏,做到综合利用,变废为宝,愈来愈受到人们的重视.     

聚氨酯橡胶陶瓷模具的应用研究

本从对陶瓷墙地砖模具工况特点分析，结合聚氨酯橡胶性能，详细介绍了聚氨酯陶瓷模具的制作以及如何达到其主要性能指标。     

模具材质对氧化铝陶瓷凝胶注模成型的影响研究

通过采用金属、玻璃、陶瓷、塑料、复合材料等材质作为模具,研究了各种材质对凝胶注模成型氧化铝陶瓷坯体的影响。结果表明,用不锈钢模具、马口铁模具、陶瓷模具与玻璃模具成型的坯体质量高,而用有机高分子类(PVC、PP、环氧树脂、石蜡等)模具成型出来的坯体质量不太理想。此外,用金属模具或薄壁模具成型的凝胶反应时间相比陶瓷、玻璃或高分子类模具要短。     

浅述石膏——陶瓷工业模型的主要原料

陶瓷生产中，石膏模具的制作及应用非常广泛。制作石膏模型的基本材料是天然石膏经过加工、提炼后形成的。在生产中因不同的需要，而必须对石膏进行改良、改性，达到制作要求。     

卫生陶瓷工作模用石膏粉的研究

文章简述了卫生陶瓷工作模用石膏粉的生产工艺。较全面地介绍了模用石膏粉的质量检测项目及其检测方法;分析了制模工艺、机理及其影响因素;研究并探讨了提高模具寿命和成形速率的因素与方法。     

Functional coatings for titanium casting molds using the replica technique

The quality of titanium cast parts depends not only on the corrosion reaction of the mold in contact with the titanium alloy melt, but also on the dimensional accuracy and the surface quality of the investment casting mold. Usually, the ceramic mold is produced by dip-coating. This contribution investigated the coating properties of green calcium zirconate (CaZrO₃) coatings produced by the replica technique. Thus, the effect of different coating slurries as well as different coating technologies on important coating properties was analyzed. In all cases, centrifuging and spraying produced thinner coatings compared to dip-coating. Using an appropriate coating slip, particularly centrifuging revealed a cohesive homogeneous coating surface and is therefore a promising technology for the production of functional coatings for titanium casting molds.     

陶艺的思维和创作-论陶艺创作的逻辑思辩

从陶瓷艺术的渊源及其发展变化的趋向,全面阐述了传统陶瓷艺术与现代陶艺的创作思维方法,并指出了现代陶艺家利用逻辑思辩的方法—反面思维法,进一步丰富和完善了陶艺创作的思维方式,拓宽了陶艺的创作思维空间。     

论陶瓷美术诗情画意

本文从四个方面对陶瓷美术中的诗情画意的表现手法等进行了仔细的分析和描述。其主要内容不仅对中国陶瓷美术,同时也对其他艺术的理论探讨和创作具有一定参考意义。     

氮化硼基复合陶瓷型壳的抗钛液冲蚀能力

研究了纯氮化硼型壳、氮化硼基复合型壳与熔融钛之间的界面反应,比较了2种型壳的抵抗钛液冲蚀能力.对这2种型壳的高温残余强度、表面形貌、化学成分等进行了分析.结果表明:氮化硼基复合型壳中加入氧化钇,不仅能提高型壳的强度及致密度,还能在型壳内表层形成一层由均匀随机分布的氧化钇和氮化硼粉粒网状链结成的"马赛克"结构的面层,具有显著提高型壳抗钛液冲刷和侵蚀的能力.     

综合材料介入陶瓷艺术的形式规律

综合材料介入陶瓷艺术并不是把一大堆各式各样的材料随意堆积放置,而是要将这些材料通过艺术创作与陶瓷材料有机的结合构成艺术作品。本文运用形式美法则结合综合材料介入陶瓷艺术的创作进行分析研究,揭示综合材料介入陶瓷艺术的艺术规律:主从与重点、过渡与照应、节奏与韵律、质感与肌理、调和与对比、多样与统一。     

Mechanical and kinetic studies on the refractory fused silica of integrally cored ceramic mold fabricated by additive manufacturing

A refractory fused silica based integrally cored ceramic mold, the ceramic core with a ceramic mold shell in a single patternless construction, is fabricated by ceramic stereolithography of additive manufacturing. Refractory ceramic molds should satisfy the following restrictions such as similar strength to that of cast metal during solidification, thermal stability for dimensional accuracy, and easy removal of core after casting. Here, we report mechanical and transformation kinetic studies on the refractory fused silica of integrally cored ceramic mold. The flexural strength of sintered silica continually increases with higher density of better densification up to 11.4 MPa at 1300 °C, while it decreases from 11.3 MPa at 1350 °C to 4.6 MPa at 1500 °C. The degradation of the flexural strength is related to the larger amount of the cristobalite and microcracks generated by the abrupt contraction induced during the transformation of beta to alpha cristobalite. Given the quantitative x-ray diffraction study on transformation kinetics, an apparent activation energy Q is 674 ± 53 kJ/mol and the average time exponent 1.85, suggesting that the transformation kinetic is controlled by 1-dimensional interfacial growth.     

Fabrication of Fiber-Reinforced Ceramic Composites by the Modified Slurry Infiltration Technique

A new technique for the homogeneous infiltration of concentrated and viscous ceramic filler slurries into stacked 2D-woven fabrics has been developed by introducing a flexible mold. The inner space of the mold expanded during slurry infiltration, which enhanced penetration of the viscous slurry into the woven fabric layers. The subsequent precursor impregnation and pyrolysis process yielded fiber-reinforced ceramic composites with scarce macropores between the fabric layers.     

Drying of a Slip Casting for Tableware Product Using Microwave Continuous Belt Dryer

To demonstrate the potential of microwave drying in the ceramic industry, microwave demolding of tableware product by a continuous microwave belt drier has been investigated. This study focuses on the investigation of the effects of the irradiation time, sample size, microwave power and location of magnetron on overall drying kinetics. The results show that microwave drying has several advantages over the conventional method such as shorter processing time, volumetric dissipation of energy throughout a product, high energy efficiency, reduced amount of mold usage, and offering product quality. Further quantitative validation of experimental data could be very useful, especially in providing information for processing high-performance microwave drying for developing the ceramic industry in Thailand.     

论现代陶艺中的艺术个性

充分体现艺术个性，是现代陶艺的灵魂，在陶艺创作过程中起着重要的作用。因此，陶艺家应该培养体现艺术个性的能力，为创作出构思独特，创意新颖的作品打下坚实的基础。