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Factory sales expandable polymeric beads Sheet Sandwich Panels STMMA Slab board for Lost form casting

Factory sales expandable polymeric beads Sheet Sandwich Panels STMMA Slab board for Lost form casting

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الاتصال الآن
Zhejiang Castchem New Materials Co., Ltd.

Zhejiang Castchem New Materials Co., Ltd.

China

عضو مجاني

الشخص الذي يمكن الاتصال به kim

Hangzhou, Zhejiang

الاتصال الآن

Description

 
 
 
Factorysales expandable polymeric beadsSheet Sandwich PanelsSTMMA Slab board for Lost form casting
          Professional Manufacturer

      Insulation Options rock wool
glass wool
STMMA
EPS+MMA
  Zinc Galvanized ≥**0kg/m³
  Insulation Thickness *****0mm
Length Width Applicable Temperature          *******0℃

The Advantage of using the STMMA instead of EPS
 
Pure EPS: **0% polystyrene, pentane<5.5%
STMMA:*0%polystyrene**0%MMA,pentane>7%
STMMA-FD:*0%polystyrene**0%MMA, pentane>7%
 
Decomposition and gasification chemical formula when pouring metal melt:
EPS: C8H8=8C*4H2
STMMA:C5O4H8=3C*2CO2*4H2
From the formula, you will see why residues are more in EPS. And whatever additive you added to EPS, it wont change the main formula.
 
1.STMMA carbon content of *2%, while carbon in EPS is up to *3%. STMMA will greatly reduce the carburization defects during casting.   
2.STMMA has a low pouring temperature, gasification temp generally has *0℃ lower than EPS( STMMA between ***0℃ to ***0℃, EPS between ***0℃ to ***0℃). This will help the foundry to save energy consumption in $*0 to $**0 per ton of castings.
The molecular bonds are broken orderly when STMMA gasifying, accompany with liquid low molec
3.ular residues. EPS molecules are disorderly broken, accompany with tar similar residues.
4.The high molecular weight of STMMA will reduce the pattern\'s dimensional shrinkage rate. Compare with the **0 thousands of molecular weight, EPS has only *0 to *0 thousands of molecular weight.
 
 (The lost foam casting foam-pattern making raw material)

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