潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图

Home > Offer to Sell > Metals and Minerals > Others > How to choose refractories for furnace

How to choose refractories for furnace

Inquiry
  Post Date: Jul 02,2018
  Expiry Date: Dec 29,2018
  Detailed Description: Quantity: 1
Payment Method: L/C,D/A,D/P,T/T,Western Union,MoneyGram
The main performance of the kiln is mainly determined by the technical and economical performance of the refractories, which directly affects the investment cost, work performance, thermal efficiency, and energy consumption of the kiln. The general principle of choosing refractory materials:

1, the furnace performance and thermal characteristics. Kilns with intermittent work should use materials with low heat capacity.
2, the safe use of materials temperature, thermal conductivity, high temperature strength, chemical stability.
3, the use of life.
4, investment costs and operating maintenance costs.

In general, heavy refractory materials focus on a certain technical performance index, such as high temperature stability, chemical stability, etc.; lightweight insulation materials pay more attention to the integrated technical and economic indicators of input and operation.

When using lightweight insulation materials, it is generally determined by the thermal conductivity of the insulation material (λ) and the cost per unit volume of insulation material (Ρ). The smaller the value of the product of “λΡ”, the better. The small value of the thermal conductivity indicates that the thermal insulation material has a good thermal insulation effect and the energy cost during operation is low. The low cost per unit volume of insulation material indicates that the investment cost is low and has a good investment and economic effect. It can be selected by coordinate graphical method. The abscissa is the working temperature and the ordinate is the product of (λΡ). The curve of each material is intercepted by the safe use temperature of the material, and the material with good technical and economic performance is selected.


  Company: Zhengzhou Sunrise Refractory Co., Ltd.     [ China ]        
  Contact: Helen
  Tel: +8637163838939
  Fax:
  Email: sunriserefractory15@gmail.com
Disclaimer statement:The information and data included above have been realized by the enterprises and compiled by the staff, and are subject to change without notice to you. The Chemnet makes no warranties or representations whatsoever regarding the facticity, accuracy and validity of such information and data. In order to ensure your interest, we suggest you chose the products posted by our gold suppliers or VIP members.
主站蜘蛛池模板: 南平市| 宽甸| 祥云县| 保德县| 星座| 宁南县| 嘉鱼县| 镇原县| 偃师市| 盘山县| 太和县| 车险| 梁山县| 舟曲县| 科尔| 金门县| 宁波市| 宜黄县| 永济市| 友谊县| 馆陶县| 天长市| 开封县| 海林市| 河津市| 汉寿县| 上杭县| 随州市| 岱山县| 北川| 海原县| 云南省| 武平县| 河东区| 大新县| 星子县| 囊谦县| 平舆县| 兴和县| 临高县| 平陆县|