429 2Characteristics of Insulation Plate MISUMI heat insulating plates provide excellent heat insulation. These plates are laminated heat resistance sheets which are made of the glass fiber (that is forming frames) and the highly heat resistant combined material. They are asbestos-free new materials. Eight grades of heat insulating plates are available to meet various applications. t Standard Grade: It serves as the heat resistant structural material for heating presses and die spacers. t Heat Resistant Grade : It can be used as heat resisting structural material in much higher temperature and is more cost-effective than the standard grade. t High Strength Grade: It has excellent compression and bending strength properties and is suitable to use as heat insulating material for the outside of heating furnaces. t High Temperature Resistant Grade: It maintains compression strength property under high temperature and is suitable for a use of heat resisting and insulating material for the outside of electric furnaces. t High Temperature Insulating Grade: As both of low heat conductivity and high strength were realized, it provides excellent heat insulation effect with smaller thickness of plate. t High Temperature Super Insulating Grade: Low temperature conductivity, lightweight and strength in high temperature provide excellent insulation. t Very High Temperature Resistant Grade: Excellent heat resistance up to 1000°C. Usable for heating furnaces with high temperature. t Free Cutting Grade : It has excellent mechanical strength and dimension stability. It can be used as cement board for electric insulation. 2Characteristics of Thermal Plate MISUMI's Insulation Plates are light-weighted and provide excellent heat insulation effect. The Heat Insulation Plates make it possible to improve operational environment such as heat reservation of equipment and prevention of burns at a low cost. &Testing method conforms to JIS K6911. &The values are representative values and not a guarantee. (Note 1) "Recommended Operating Temperature" is the temperature in which some long-term use does not reduce the quality rapidly. (Refer to next page "Insulation Plates Characteristics Graphs".) (Note 2) "Destructive Temperature" is a temperature where carbonization, collapse, and meltdown will begin. (Note 3) "Compression Strength" of Thermal Plate (HIPCA) is the value for 5% deformation. (Note 4) Condition for "Volume Resistivity" of Free-cutting Grade (HIPMA) is 24h/150°C. (Note 5) Values of "Surface Resistance" and "Bending Strength" of Free-cutting Grade (HIPMA) are those after drying. Item Part Number Insulation Plates, Insulation Sheets Thermal Plates Standard Heat Resistant High Strength High Temp. Resistant High Temperature Insulating High Temperature Super Insulating Very High Temp. Resistant Free-cutting Unit HIPA KJLHP ENJHP HIPHA KJLHH ENJHH HIPYA HIPYKH ENJHY HIPLA HIPLKH KJLHL ENJHL HIPIA ENJHA HIPAL HRMB HIPMA HIPCA Component Main Base Material - Glass Fiber Glass Fiber Glass Fiber Glass Fiber Glass Fiber Glass Fiber Calcium Silicate Glass Fiber (Small Amount) Glass Felt Main Material - Silicic Acid Base Borate Type Super Heat Resistant Epoxy Resin Calcium Silicate Base Binder ISO Type Unsaturated Polyester Calcium Silicate Base Binder Cement Calcium Silicate Base Binder Electrical Characteristic Dielectric Breakdown in Crosswise kV/mm 6 3 27 10 10 10 - 2.9 - Volume Resistivity 4h/150°C Ω ∙ cm 2.0x1014 1.0x1012 2.0x1015 5.7x1016 6.0x1016 1.3x1015 - 1.0x1010 (Note 4) 2.4x1010 100h / 25°C / 90%RH Ω ∙ cm 3.0x109 1.0x107 1.0x1014 8.2x1015 - 7.2x1014 - 1.0x109 - Surface Resistance Ω - - 2.0x1015 3.0x1016 4.3x1016 3.4x1015 - 1.0x1011 (Note 5) 8.0x1013 Insulation Resistance Ordinary Condition Ω - - 1013~1014 1.0x1014 3.0x1015 1.0x1013 - - 3.0x1013 After Boiling Ω - - 1011~1013 2.0x109 1.3x109 2.0x108 - - - Mechanical Characteristic Bending Strength MPa 100~150 45~55 390~540 145 142 94 8.8 19.6~29.5 (Note 5) {2.0~3.0} 8.8 {kgf/mm2} {10~15} {4.6~5.6} {40~55} {14.8} {14.5} {9.6} {0.90} {0.9} Compression Strength Perpendicular to Lamination MPa 150~200 120~150 500~588 439 313 182 4.4 108 1.2 (Note 3) {kgf/mm2} {15~20} {12~15} {51~60} {44.7} {31.9} {18.5} {0.45} {11} {0.12} Parallel to Lamination MPa - - 270~390 98 235 59 - - 1.8 (Note 3) {kgf/mm2} {27~40} {10} {24} {6.0} {0.18} Izod Impact Strength J/cm - - 4.6 or More 2.9 5.6 5.1 - - 0.12 Cleavage Strength kN 2.6~3.4 1.8~2.4 7.8~10.8 3.1 4.2 2.6 - - - Thermal Characteristic Recommended Operating Temperature (Note 1) °C Room Temp. ~ 220 Room Temp. ~ 500 Room Temp. ~ 180 -80~400 Room Temp. ~ 180 Room Temp. ~ 400 Room Temp. ~ 1000 Room Temp. ~ 300 Room Temp. ~ 350 Reference - Destructive Temp. (Note 2) °C - - - - 230 500 - - 450 Expansion Coefficient °C-1 6.6x10-6 9.0x10-6 1.6x10-4 2.6x10-5 1.4x10-4 7.3x10-5 - - 9.2x10-5 Thermal Conductivity W/m t K 0.71 1.21 0.59 0.24 0.13 0.08 0.20 0.44 0.07 {cal/cm t sec t °C} {1.7x10-3} {2.9x10-3} {1.4x10-3} {0.58x10-3} {0.36x10-3} {0.19x10-3} {0.50x10-3} {1.22x10-3} {0.19x10-3} Others Arc Resistance sec 180 240 180 345 75 250 - 240~370 250 Water Absorption Ratio % 2~5 4~6 0.03 0.05~0.06 0.06 0.09 - 15 6.3 Specific Gravity - 2.0~2.2 2.0~2.2 1.8~2.0 2.0 1.41 1.2 0.84 1.75 0.5 Heat Insulating Plates Characteristics
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