纤维水泥板.doc

Fiber cement production panel line Technology requirements 1.1 Specification Length x Width x thickness : 2440mm x 1220mm x 6-10mm 1.2 Quality Standards Key performance indicators Item Unit Fiber board Density g/cm3 0.9-1.20 Bending degree MPA ＞9 w/m.k ＜0.29 kJ/mm2 ＞2.0 N/mm ＜0.2 % GB8624A Incombustible material Incombustible 1.3 Capacity: Theoretical production capacity：00 per/day Pre- curing time：h Production time：h/day 1.4 Storage volume of the main raw material ● Fibers for 7 days (asbestos fiber,glass fiber,pulp fiber,wood pulp fiber,textile fiber,pp fiber; can choose two of those) the requirements according to your local conditions. ● Pulverized materials like cement,limestone for 3 days.Details need to discuss. The quality requirements of main raw material ： ● limestone : SiO2≥80%, fineness≥200 mesh sieve 10% . ● Cement: 32.5 and above ordinary Portland cement ● Glass fiber:fineness 0.088mm,length 15--30mm ● Fiber material:(asbestos or wood pulp and pp fiber) ● Pulp fiber:none bleached sulfate coniferous wood pulp or Kraft pulp Beating degree: 20--70°SR All above is the basic requirement of the raw material.Sometimes,different material can produce qualified calcium silicate board. 二 Introduction of raw material ● The common materials rate of fiber cement sheet: cement 50%, limestone powder 30%-40%, asbestos fiber 6%-8%, pulp fiber 4%-5%, glass fiber 1% ● If clients requirement the asbestos fiber free,the rate is cement 50%, limestone powder 30%-40%, wood pulp8% , pulp fiber 8%, glass fiber 1% 1.Asbestos: Asbestos is composed of fiber bundle. Asbestos with high fire resistance, electrical insulation and adiabaticity, It is the most important materials of fire prevention, insulation and thermal insulation . The effect of asbestos fiber is combined with cement slurry, the adhesive can extract the cement slurry, and harden. 2.limestone powder: Mine tailings is given priority to with calcium containing silicon material .Mainly use