Process for heat treatment of glass and fluidised bed for carrying out the processGlass is tempered by contact with solid particles fluidised with a gas to ensure that transfer from the glass the glass to the particles. The fluidised material is kept in a steady state of uniform fluidisation....
Figure 5. Effects of foaming process parameters on the properties of foam glass-ceramics(a-foaming temperature, b-foaming time) 下载: 全尺寸图片 幻灯片 从图5可知,微晶泡沫玻璃试样的抗压强度和表观密度均随发泡温度的升高呈现逐渐降低的趋势,随发泡时间的增加呈现先降低后轻微递增的趋势。根据图4a的DSC...
The invention provides a process capable of heating sol-gel tubes used in the manufacture of glass optical fibre preforms, or other bodies (11,27) in a manner that both limits the amount of undesir
The simulated molten steel slag was used as raw materials to prepared glass-ceramics using melting-quenching method.The quartz sand was added in to adjust the steel slag component with the mass ratio of 1∶1.Effects of temperature on the crystallization and properties of glass-ceramics were studi...
Learn about the benefits and processes involved in heat treating plastics, including the role of industrial ovens.
The invention relates to a process of packaging products, particularly foods and a closed container with packed products, particularly foods, which container with packed products has been subjected to a heat treatment after packaging. Such a process and closed container are known in the art. The...
Glass and glass ceramics with the molar composition 60SiO 2–30Na 2O–10Nb 2O 5 (mol%) were prepared by the melt-quenching method. Sodium niobate (NaNbO 3) crystallites were precipitated on the surface of the glass through a controlled heat-treatment (HT) process. The NaNbO 3 crystallite...
As an example, compact heat exchangers, such as welded or brazed plate units where approach temperature differences can be very small, can be very efficient. Over the years since it was first conceptualized, the implementation of PI has evolved into two distinct classifications involving the ...
The fractionation process for the powder sample was carried out in a sealed glass bottle. The raw material was mixed with a certain amount of NaOH alcohol aqueous solution and heated in a water batch for 120 min at 80 °C (solid-liquid ratio was 1:10 and the specific solution conditions ...
High-speed steel EN HS 10-5-3-10 had the highest achieved hardness of 67HRC after heat treatment; on the other hand, the lowest hardness value of 62HRC after heat treatment was achieved by high-speed steel EN HS6-5-2C. The values of the physical and mechanical properties of the ...