H70 粉末冶金综合 标准查询与下载

ASTM B276-05e1 硬质合金表观孔隙率的标准试验方法

Cemented carbide materials may contain small voids that, depending on the application, may affect the performance of the product. To assist users in specifying the maximum acceptable level of porosity, this test method illustrates a broad range of porosity levels for each of three porosity types. This test method is not intended to be used as a specification, but the levels shown here may be cited in specifications written by producers and users of cemented carbides.1.1 This test method specifies procedures for the metallographic determination of apparent porosity in cemented carbides. Note 1The term "apparent porosity" is construed to mean all microstructures observed on a properly prepared, unetched surface, including structures resulting from uncombined carbon, non-metallic inclusions, etc., as well as true, inherent porosity.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.

Standard Test Method for Apparent Porosity in Cemented Carbides

ASTM B939-05 粉末冶金(P/M)承重和结构材料的径向压溃强度K的标准试验方法

1.1 This test method covers the equipment and laboratory procedure for the determination of the radial crushing strength of materials using either a plain powder metallurgy (P/M) bearing or a hollow cylindrical test specimen. This is a destructive test that produces quantitative results.1.2 Limitations1.2.1 The principle of this procedure is based on the material being tested having minimal ductility. The permanent deflection of the cylinder during the test should not exceed 10 % of the outside diameter.1.2.2 The radial crushing strength test results should be used only as a guide if the test specimen has a wall thickness that is greater than one-third of the outside diameter. These test results should then only be used for comparison with data from the test specimens of like materials and similar dimensions.1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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.

Standard Test Method for Radial Crushing Strength, K, of Powder Metallurgy (P/M) Bearings and Structural Materials

ASTM B330-05 测定金属粉末及相关化合物的费歇尔值的标准试验方法

1.1 This test method uses air permeability to determine an envelope-specific surface area and its associated average equivalent spherical diameter (from 1 to 50 m) of metal powders and related compounds. The powders may be analyzed in their "as-supplied" (shipped, received, or processed) condition or after they have been de-agglomerated or milled by a laboratory procedure ("lab milled") such as that specified in Practice B 859. The values obtained are not intended to be absolute but are generally useful on a relative basis for control purposes.1.2 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.

Standard Test Method for Fisher Number of Metal Powders and Related Compounds

ASTM B276-05 硬质合金表观孔隙率的标准试验方法

1.1 This test method specifies procedures for the metallographic determination of apparent porosity in cemented carbides. Note 1 The term "apparent porosity" is construed to mean all microstructures observed on a properly prepared, unetched surface, including structures resulting from uncombined carbon, non-metallic inclusions, etc., as well as true, inherent porosity.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.

Standard Test Method for Apparent Porosity in Cemented Carbides

ASTM B703-05 用阿诺德仪表测定粉末表观密度的标准试验方法

The apparent density is an important measure of a material characteristic inherent in the powder that is useful to the powder producers and end users in determining lot to lot consistency. Knowledge of the apparent density of the final mix as obtained with this test method is very beneficial to the powder metallurgy (P/M) parts fabricator for setting compression ratios for fixed fill die cavities. This test method may be part of a purchase agreement between the powder supplier and P/M parts producer, or it may be an internal quality control test for either party.1.1 This test method covers a procedure for determining the apparent density of both free- and non-free-flowing powders, premixes, and blended mixes.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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.

Standard Test Method for Apparent Density of Powders Using Arnold Meter

KS D ISO 10070:2004 金属粉末.正常状态流动条件下粉末层的通风路径比表面积测量方法

이 규격은 공기의 통기도와 금속 분말이 충진된 베드의 기공률을 측정하기 위한 방법과 비

Metallic powders－Determination of envelope-specific surface area from measurements of the permeability to air of a powder bed under steady-state flow conditions

KS D ISO 4492:2004 金属粉末(不包括硬质合金粉末).压实与烧结尺寸变化的测定

이 규격은 금속 분말의 압축 성형 및 소결에 따른 치수 변화를 비슷한 공정 조건으로 진

Metallic powders, excluding powders for hardmetals-Determination of dimensional changes associated with compacting and sintering

KS D ISO 4497:2004 金属粉末.干筛法测定粒度

이 규격은 건식 체질로 금속 분말의 입자 크기 분포를 입도별로 측정하는 방법을 규정한다

Metallic powders-Determination of particle size by dry sieving

JIS Z 2500 ERRATUM 1:2004 勘误

ERRATUM

ASTM B934-04 通过微压痕硬度测量铁粉末冶金部件有效硬化层深度的标准试验方法

1.1 This test method covers a procedure for determination of the effective case depth of powder metallurgy (P/M) parts.1.2 A microindentation hardness traverse procedure is described to determine effective case depth. This test method may be used to determine the effective case depth for all types of hardened cases.1.3 The procedure for determining the microindentation hardness of powder metallurgy materials, as described in Test Method B 933 shall be followed.1.4 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.

Standard Test Method for Effective Case Depth of Ferrous Powder Metallurgy (P/M) Parts Using Microindentation Hardness Measurements

ASTM B215-04 金属粉末取样的标准实施规程

Since many tests are performed using very small amounts of powder, it is most important that the test portions be obtained in a standardized manner. The practices described here take into account the possibility of segregation of the metal powder during and after filling of containers. PRACTICE A Top FOR POWDERS BEING TRANSFERRED FROM BLENDERS OR STORAGE TANKS Top 1.1 These practices describe two procedures for obtaining samples of metal powders for subsequent testing:1.1.1 Practice AFor powders being transferred from blenders or storage tanks.1.1.2 Practice BFor powders already packaged in containers.1.2 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.

Standard Practices for Sampling Metal Powders

ASTM B934-04a 通过微压痕硬度测量铁粉末冶金部件有效硬化层深度的标准试验方法

The engineering function of many P/M parts may require an exterior portion of the part to have a specified case depth and microindentation hardness. Measurement of effective case depth is used to determine the depth to which the microindentation hardness of the exterior portion of a part has been increased over that of the interior of the part.1.1 This test method covers a procedure for determination of the effective case depth of powder metallurgy (P/M) parts.1.2 A microindentation hardness traverse procedure is described to determine effective case depth. This test method may be used to determine the effective case depth for all types of hardened cases.1.3 The procedure for determining the microindentation hardness of powder metallurgy materials, as described in Test Method B 933 shall be followed.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.

Standard Test Method for Effective Case Depth of Ferrous Powder Metallurgy (P/M) Parts Using Microindentation Hardness Measurements

KS D ISO 4496:2003 金属粉末.铁、铜、锡和青铜粉末中酸不溶物含量的测定

이 규격은 철, 구리, 주석 및 황동 분말에서 일반적인 무기 산에 불용성인 비금속성 물

Metallic powders－Determination of acid-insoluble content in iron, copper,tin and bronze powders

KS D ISO 4491-4:2003 金属粉末.还原法测定氧含量.第4部分:还原萃取法测定氧的总含量

ISO 4491의 제4부에서는 산소의 총 함유량이 2 %(m/m) 이하인 금속 분말 중

Metallic powders-Determination of oxygen content by reduction methods-Part 4:Total oxygen by reduction-extraction

ISO 14168:2003 硬金属除外的金属粉末.铜基渗透粉末的试验方法

This International Standard specifies a method for determining the performance characteristics of copper-base infiltrating powders.

Metallic powders, excluding hardmetals - Method for testing copper-base infiltrating powders

ASTM B243-03 粉末冶金的标准术语

1.1 This terminology includes definitions of terms that are useful to the powder metallurgy industry. These definitions are helpful in the interpretation and application of powder metallurgy terms.

Standard Terminology of Powder Metallurgy

ASTM B931-03 从金相学上评估铁粉冶金(P/M)部件的观测表面硬化深度的标准试验方法

The engineering function of many P/M parts may require an exterior portion of the part to have a hardened layer. Where case hardening produces a distinct transition in the microstructure, metallographic estimation of the observed case depth may be used to check the depth to which the surface has been hardened.1.1 A metallographic method is described for estimating the observed case depth of ferrous powder metallurgy (P/M) parts. This method may be used for all types of hardened cases where there is a discernible difference between the microstructure of the hardened surface and that of the interior of the part.1.2 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.

Standard Test Method for Metallographically Estimating the Observed Case Depth of Ferrous Powder Metallurgy (P/M) Parts

ASTM B243-03a 粉末冶金的标准术语

1.1 This terminology includes definitions of terms that are useful to the powder metallurgy industry. These definitions are helpful in the interpretation and application of powder metallurgy terms.

Standard Terminology of Powder Metallurgy

ASTM B923-02 用氦或氮比重瓶测定法测量金属粉末轮廓密度的标准试验方法

Both suppliers and users of metals can benefit from knowledge of the skeletal density of these materials. Results of many intermediate and final processing steps are controlled by or related to skeletal density of the metal. In addition, the performance of many sintered or cast metal structures may be predicted from the skeletal density of the starting metal powder, for all or a portion of the finished piece.1.1 This test method covers determination of skeletal density of metal powders. The test method specifies general procedures that are applicable to many commercial pycnometry instruments. The method provides specific sample outgassing procedures for listed materials. It includes additional general outgassing instructions for other metals. The ideal gas law forms the basis for all calculations.1.2 This test method does not include all existing procedures appropriate for outgassing metal materials. The included procedures provided acceptable results for samples analyzed during an interlaboratory study. The investigator shall determine the appropriateness of listed procedures.1.3 This method uses SI units as standard according to Practice E 380. State all numerical values in terms of SI units unless specific instrumentation software reports volume and/or density using alternate units. In this case, present both reported and equivalent SI units in the final written report. Many instruments report skeletal density as g/cm3 instead of using correct SI units (kg/m 3).1.4 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.

Standard Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry

ASTM B922-02 物理吸收法测定金属粉末特定表面积的标准试验方法

Both suppliers and users of metals can benefit from knowledge of the surface area of these materials. Results of many intermediate and final processing steps are controlled by, or related to, specific surface area of the metal. The performance of many sintered or cast metal structures may be predicted from the specific surface area of the starting metal powder, or all or a portion of the finished piece.1.1 This test method covers determination of surface area of metal powders. The test method specifies general procedures that are applicable to many commercial physical adsorption instruments. The method provides specific sample outgassing procedures for listed materials. It includes additional general outgassing instructions for other metals. The multipoint equation of Brunauer, Emmett and Teller (BET), along with the single point approximation of the BET equation, forms the basis for all calculations.1.2 This test method does not include all existing procedures appropriate for outgassing metallic materials. The procedures included provided acceptable results for samples analyzed during interlaboratory testing. The investigator shall determine the appropriateness of listed procedures.1.3 This method uses SI units as standard. State all numerical values in terms of SI units unless specific instrumentation software reports surface area using alternate units. In this case, present both reported and equivalent SI units in the final written report. Many instruments report surface area as m2/g, instead of using correct SI units (m 2/kg).1.4 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.

Standard Test Method for Metal Powder Specific Surface Area by Physical Adsorption