ASTM C417未经焙烧的整块耐火材料导热性标准试验方法

ASTM C417 Standard Test Method for Thermal Conductivity of Unfired Monolithic Refractories
ASTM C417 未经焙烧的整块耐火材料导热性标准试验方法

The thermal conductivity of monolithic refractories is a property required for selecting their thermal transmission characteristics. Users select monolithic refractories to provide specified conditions of heat loss and cold face temperature, without exceeding the temperature limitation of the monolithic refractory. This test method establishes placement of thermocouples and positioning of test specimens in the calorimeter.
This procedure must be used with Test Method C201 and requires a large thermal gradient and steady state conditions. The results are based upon a mean temperature.
The data from this test method are suitable for specification acceptance, estimating heat loss and surface temperature, and the design of multi-layer refractory construction.
The use of these data requires consideration of the actual application environment and conditions.

1. Scope
1.1 This test method supplements Test Method C201, and shall be used in conjunction with that test method for determining the thermal conductivity of unfired monolithic refractories.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately)
ASTM Standards
ASTM C182 Test Method for Thermal Conductivity of Insulating Firebrick
ASTM C201 Test Method for Thermal Conductivity of Refractories
ASTM C862 Practice for Preparing Refractory Concrete Specimens by Casting
ASTM C1054 Practice for Pressing and Drying Refractory Plastic and Ramming Mix Specimens
ASTM E220 Test Method for Calibration of Thermocouples By Comparison Techniques
Index Terms
calorimeter; castable refractories; monolithic refractories; plastic refractories; refractories; thermal conductivity; Refractories (castable); Refractories (monolithic); Thermal analysis (TA)--refractories ;

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 来源：防火网　发布时间：12/24/2013 点击次数：1596