共查询到20条相似文献,搜索用时 129 毫秒
1.
2.
问:我厂生产抛光砖,暖水率控制在0.1%以下,并在砖表面做了良好的防污处理,但偶然还是有客户对防污问题投诉。请问,国家标准对抛光砖的防污性能具体是怎样规定的? 相似文献
3.
4.
5.
6.
8.
防污技术在建筑陶瓷抛光砖中应用的探讨 总被引:4,自引:0,他引:4
介绍了抛光砖产品的原因,污染的主要成分,防污剂在抛光砖中的应用原理以及使用效果对比,注意事项,探讨解决抛光砖吸污的问题。 相似文献
9.
10.
抛光砖的抗污性及高效防污剂的研究 总被引:1,自引:0,他引:1
陶瓷砖在日常使用中,常会受到污染物(如墨水、油漆、茶水、油污等)的污染,在其表面留下难以去除的污痕。通常瓷砖的吸水率越大,易受污染的程度也越大。目前,为了进一步提高瓷砖的抗污能力,大部分抛光砖生产企业在生产时都会使用防污剂,以弥补由于生产工艺方面的原因所导致的抛光砖表面抗污性能差的不足。 相似文献
11.
H.J. Alves F.G. Melchiades A.O. Boschi 《Journal of the European Ceramic Society》2012,32(10):2095-2102
The final porosity of porcelain tiles results from the incomplete densification of the material during the stages of processing. The use of raw materials such as feldspar, with a high potential for forming liquid phase during sintering, contributes to eliminate porosity when a suitable heating cycle is employed. This paper presents the results of a study that investigated the effect of the particle size distribution (PSD) of feldspar on the formation of pores in the green compact and the final product, using stain resistance as an evaluation parameter of surface porosity. To this end, the feldspar used in a standard paste of technical porcelain was milled under different conditions to produce the desired changes in its PSD. The groundbreaking results indicate that slight changes in the milling conditions of feldspar can significantly alter the porous microstructure of the material and the stain resistance of the polished tile surface. 相似文献
12.
重庆涪陵建陶朝华陶瓷有限公司是我集团主要生产瓷质抛光砖的企业 ,在生产大规格砖时遇到一些技术问题 ,通过我们的努力现已生产出合格产品 ,以下是我们解决技术问题的一些经验 ,供同行参考。朝华公司刚投产 80 0 × 80 0 砖坯时 ,半成品变形较严重 ,主要表现为出窑方向有一只砖角上翘 ,而后面有一只砖角下弯 ,且呈波浪形变形 ,致使抛光线漏抛严重。经过认真分析和观察 ,发现砖坯走势较乱 ,若把窑前进砖的位置移动一下 ,变形就要好些 ,于是我们怀疑问题可能就出在传动上。首先 ,我们把窑炉的辊棒全部校成水平 ,发现窑前和窑尾的辊棒高低却… 相似文献
13.
详细系统地分析了影响大规格渗花抛光砖渗花效果的各种因素,针对各种因素在各工序上严格把关和控制,对生产实践有一定的指导和帮助。 相似文献
14.
《Journal of the European Ceramic Society》2005,25(9):1487-1498
The flexural strength and the Young’s modulus of as fired and polished porcelain stoneware tiles were investigated. Bending tests were carried out on suitable specimens, cut from five commercial products before and after polishing. The differences found in the flexural strength data were evaluated by the analysis of variance and the determination of the Weibull parameters. The results showed that: (i) the as fired tiles and the corresponding polished tiles cannot be always considered the same material and (ii) the data scattering is usually greater for the polished products, i.e., the reliability of the polished products, in terms of the Weibull modulus m, decreases. The results, supported by microstructural observations, surface roughness and Vickers hardness measurements, were directly attributed to the severe damage induced by the first step of machining, i.e., calibrating or grinding. Young’s modulus data showed a clear dependence on the pre-existing porosity, i.e., the production process, rather than on the machining induced damage. It was also shown that the conditions and the characteristics of the polished working surfaces strongly depend on the microstructure of the as fired material. 相似文献
15.
Effect of composition on viscosity of porcelain stoneware tiles and role of the viscosity on microstructure development and stain resistance in porcelain stoneware tiles were investigated. The viscosity of the tiles was successfully measured by a thermomechanical analyzer. Na2O/K2O ratio was used as a parameter to change the viscosity. As the Na2O/K2O ratio increases, the viscosity decreases. This reduction in the viscosity results in improvement of microstructure (i.e., spherical pore morphology and reduced closed porosity) and usually increases the stain resistance significantly. However, too low viscosity may also cause deformation of the tile during production. Therefore, the viscosity of the tiles should be carefully controlled and it should lie between a lower limit (in this study this value is between 107.93 and ~108.35 P) and an upper limit (in this study this value is 108.67 P) to achieve high stain resistant porcelain tiles with no deformation. 相似文献
16.
重坯在有的地方称为层状组织或层裂,它是由于在成形时粉料中的空气未被完全排出残留在坯体内,在外界压力作用下残留的空气产生被动压缩,当压力撤消后被压缩的空气膨胀回弹从而使坯体上下分层,严重的整块分层,轻微的可在坯体部分存在。 相似文献
17.
微粉抛光砖生产工艺改进 总被引:1,自引:0,他引:1
前言 微粉抛光砖作为高档次的建筑装饰材料越来越受到用户的青睐,并逐步成为抛光砖系列的主打产品。在生产工艺上,微粉抛光砖与普通渗花抛光砖大不相同,但生产设备和工艺流程基本相同。微粉抛光砖市场价格昂贵,主要是生产成本太高,除了原料中的高价色料外,产量低,损耗大,质量难于控制也是造成生产成本居高不下的关键所在。笔者通过多年对微粉抛光砖生产的分析研究,认为通过改造生产设备,改进生产工艺流程,可以达到降低生产成本的目的。 相似文献
18.
五层干燥器在抛光砖生产中的应用 总被引:1,自引:1,他引:0
前言
近几年来,建筑陶瓷行业的渗花砖、微粉砖、抛光砖等蓬勃发展,规格越做越大,比较常见的规格有600mm×600mm,800mm×800mm,1000mm×1000mm抛光砖;产量也越来越大,一条线产量已达到8000-15000^m2/d。但是,无论是佛山地区还是国内其他建陶产瓷区仍然采用单层或双层干燥器作为干燥的主要设备,一直以来普遍存在干燥破损率高,质量不稳定,调试难度大,对坯体强度要求高等诸多问题,很多厂商深受困扰,损失较大。 相似文献
19.
渗花抛光砖自投放市场以来,以其优良的理化性能和丰富的图案花色已经成为建筑装饰材料的中坚力量,但其产品颜色的色差严重影响了整体装饰效果。造成渗花抛光砖色差的原因很多,从原料配方到球磨、喷雾干燥、压砖机成形、印花渗透、窑炉烧成甚至抛光等各工序都或多或少存在着导致色差产生的问题。笔者结合 相似文献