H70 粉末冶金综合 标准查询与下载



共找到 252 条与 粉末冶金综合 相关的标准,共 17

Hardmetals - Determination of total carbon - Gravimetric method

ICS
77.160
CCS
H70
发布
2009-10-01
实施

Metallic powders - Determination of apparent density and flow rate at elevated temperatures - Part 1: Determination of apparent density at elevated temperatures

ICS
77.160
CCS
H70
发布
2009-04
实施

Metallic powders - Determination of apparent density and flow rate at elevated temperatures - Part 2: Determination of flow rate at elevated temperatures

ICS
77.160
CCS
H70
发布
2009-04
实施

This International Standard specifies a method for determining the flow rate of metallic powders, including powders for hardmetals, by means of a calibrated funnel (Hall flowmeter). The method is applicable only to powders which flow freely through the specified test orifice.

Metallic powders - Determination of flow rate by means of a calibrated funnel (Hall flowmeter) (ISO 4490:2008); English version of DIN EN ISO 4490:2009-02

ICS
77.160
CCS
H70
发布
2009-02
实施

The rate and uniformity of die cavity filling are related to flow properties, which thus influence production rates and uniformity of compacted parts. The ability of a powder to flow is a function of interparticle friction. As interparticle friction increases, flow is slowed. Some powders, often fine powders and lubricated powder mixtures, may not flow through the Hall funnel of Test Method B 213.. Nevertheless, if a larger orifice is provided, such as in the Carney funnel, a meaningful flow rate may be determined, providing specific information for certain applications. Test Method B 213., using the Hall funnel, is the preferred method for determining the flowability of metal powders. The Carney funnel of these test methods should only be used when a powder will not flow through the Hall funnel. These test methods may also be used for comparison of several powders when some flow through the Hall funnel and some do not. Humidity and moisture content influence flow rate. Wet or moist powders may not flow through either the Hall or the Carney funnel. These test methods are based on flow of a specific mass of powder. If flow of a specific volume of powder is preferred, Test Method B 855 may be used for powders that flow readily through the Hall funnel. These test methods may be part of the purchase agreement between powder suppliers and powder metallurgy (PM) part producers, or it can be an internal quality control test by either the supplier or the end user.1.1 These test methods cover the determination of a flow rate, by use of the Carney funnel, of metal powders and powder mixtures that do not readily flow through the Hall funnel of Test Method B 213.nbsp;nbsp;nbsp; 1.2 This is a non-destructive quantitative test performed in the laboratory. 1.3 The values stated in SI units are to be regarded as standard. The values stated in parentheses are for information only, converted according to IEEE/ASTM Standard SI 10. 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 Methods for Flow Rate of Metal Powders Using the Carney Funnel

ICS
77.160
CCS
H70
发布
2009
实施

The engineering function of many PM 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 (PM) 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

ICS
77.160 (Powder metallurgy)
CCS
H70
发布
2009
实施

Electrolytic copper powder. Specifications

ICS
77.160
CCS
H70
发布
2009
实施
2010-07-01

5.1 The green strength value determined under the conditions specified by this test method is influenced by the characteristics of the powder, how it compacts under the specified conditions (i.e., the particle to particle bonding that exists following compacting), and the lubrication system used. 5.2 Knowledge of the green strength value is useful to the production, characterization and utilization of metal powders in the manufacture of PM structural parts and bearings. The test for green strength of a compacted metal powder can be used to: Relate the resistance of a pressed compact to breakage or damage due to handling. Compare the quality of a metal powder or powder mixture from lot to lot. Determine the effect of the addition of a lubricant or other powders to a base powder. Evaluate powder mixing or blending variables. nbsp;nbsp;nbsp;Factors that are known to influence the green strength of a metal powder are particle shape, particle size distribution and compressibility of the metal powder. 5.5 The amount and type of lubricant or other additives and the mixing procedures have a strong effect on the green strength of specimens produced from metal powder mixtures.1.1 This standard covers a test method that may be used to measure the transverse rupture strength of a compacted but unsintered (green) test specimen produced from lubricated or unlubricated metal powders or powder mixtures. 1.2 Green strength is measured by a quantitative laboratory procedure in which the fracture strength is calculated from the force required to break an unsintered test specimen supported as a simple beam while subjected to a uniformly increasing three-point transverse load under controlled conditions. 1.3 This test method is a companion standard to Test Method B 528 that covers the measurement of the transverse rupture strength of sintered PM test specimens. 1.4 With the exception of density values, for which the g/cm3 unit is the industry standard, and mass measurements used to calculate density, the values stated in inch-pound units are to be regarded as the standard. The SI equivalents shown in parentheses have been converted in accordance with IEEE/ASTM Standard SI 10, may be approximate and are only included for information. 1.5 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. ^REFERENCE: ASTM Standards: B 215 Practices for Sampling Metal Powders B 243 Terminology of Powder Metallurgy B 528 Test Method for Transverse Rupture Strength of Metal Powder Specimens B 925 Practices for Production and Preparation of Powder Metallurgy x00028;PMx00029; Test Specimens B 962 Test Methods for Density of Compacted or Sintered Powder Metallurgy x00028;PMx00029; Products Using Archimedesx02019; Principle E 691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

Standard Test Method for Green Strength of Specimens Compacted from Metal Powders

ICS
77.160 (Powder metallurgy)
CCS
H70
发布
2009
实施

KS D ISO 4491의 제3부에서는 수소에 의하여 환원될 수 있는 산소 함유량이 0.0

Metallic powders-Determination of oxygen content by reduction methods-Part 3:Hydrogen reducible oxygen

ICS
77.160
CCS
H70
发布
2008-12-26
实施
2008-12-26

KS D ISO 4491의 제2부에서는 특정 조건 하에서 순수한 건조된 수소의 흐름 하에서

Metallic powders-Determination of oxygen content by reduction methods-Part 2:Loss of mass on hydrogen reduction (hydrogen loss)

ICS
77.160
CCS
H70
发布
2008-12-26
实施
2008-12-26

이 표준은 환원법에 의한 금속 분말 시료 중의 산소의 함유량을 정량하는 방법에 대하여 다루

Metallic powders-Determination of oxygen content by reduction methods-Part 1:General guidelines

ICS
77.160
CCS
H70
发布
2008-12-26
实施
2008-12-26

Technical Corrigendum 1 to ISO 3927:2001 was prepared by Technical Committee ISO/TC 119, Powder Metallurgy, Subcommittee SC 2, Sampling and testing methods for powders (including powders for hardmetals).

Metallic powders, excluding powders for hardmetals - Determination of compressibility in uniaxial compression; Technical Corrigendum 1

ICS
77.160
CCS
H70
发布
2008-12
实施

Hardmetals - Metallographic determination of microstructure - Part 2: Measurement of WC grain size

ICS
77.040.99;77.160
CCS
H70
发布
2008-09
实施

Hardmetals - Metallographic determination of microstructure - Part 1: Photomicrographs and description

ICS
77.040.99;77.160
CCS
H70
发布
2008-09
实施

Metallic powders - Determination of flow time by means of a calibrated funnel (Hall flowmeter)

ICS
77.160
CCS
H70
发布
2008-08-29
实施
2008-08-29

This specification covers the Corporation’s requirements for structural parts produced from ferrous metal powders. The term “P/M parts” is used throughout this specification as the designation for powdered metal parts. Note: Requirements for powdered metal bearings, bushings and nonferrous metal parts are covered in CEMS C-5, Bearing and Bushing Alloys.

Powdered Metal Iron And Steel Structural Parts Includes Appendix

ICS
CCS
H70
发布
2008-08-01
实施

Sintered metal materials, excluding hardmetals - Determination of apparent hardness and microhardness.

ICS
77.040.10;77.160
CCS
H70
发布
2008-02-01
实施
2008-02-02

Powders for powder metallurgical purposes - Sampling.

ICS
77.160
CCS
H70
发布
2008-02-01
实施
2008-02-09

The test method is useful for the following: Classification of Powders8212;The cohesion and angle of internal friction are flowability indicators of powders and can be used to classify the powders. Quality Control8212;For a number of industrial applications flowability factors are used to compare the material flowability at different times during production. The material produced has to be held within given limits for each application and each powder so as to ensure trouble-free operation. Material Engineering8212;Powder properties are influenced by particle size, particle size distribution, fat content, humidity and other parameters. By selecting the correct parameters and the correct mixtures of powders, the required mechanical properties of the product are achieved. Design of Handling Equipment8212;For certain storage and conveyor equipment mathematical models exist which require the mechanical properties of powders. Note 28212;The quality of the result produced by this standard is dependent on the competence of personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D 3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D 3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D 3740 provides a means of evaluating some of those factors. Practice D 3740 was developed for agencies engaged in the testing or inspection (or both) of soil and rock. As such it is not totally applicable to agencies performing this standard. However, users of this standard should recognize that the framework of Practice D 3740 is appropriate for evaluating the quality of an agency performing this standard. Currently there is no known qualifying national authority that inspects agencies that perform this standard.1.1 This test method is applied to the measurement of the mechanical properties of powders as a function of normal stress. 1.2 This apparatus is suitable measuring the properties of powders and other bulk solids, up to a particle size of 5000 micron. 1.3 This method comprises four different test procedures for the determination of powder mechanical properties: 1.3.1 Test A8212;Measurement of INTERNAL FRICTION as a function of normal stress. 1.3.2 Test B8212;Measurement of WALL FRICTION as a function of normal stress. 1.3.3 Test C8212;Measurement of BULK DENSITY as a function of normal stress and time. 1.3.4 Test D8212;Measurement of DEGRADATION as a function of normal stress. 1.4 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026. 1.4.1 The procedures used to specify how data are collected/recorded or calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s o......

Standard Test Method for Measuring Shear Stresses of Powders Using Peschl Rotational Split Level Shear Tester

ICS
77.160
CCS
H70
发布
2008
实施

This International Standard specifies procedures for the sampling of powders for powder metallurgical purposes. lt also covers the splitting of the sample into the quantity required for testing.

Powders for powder metallurgical purposes - Sampling

ICS
77.160
CCS
H70
发布
2007-09-28
实施
2007-09-28



Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号