GB/T 10923-2009 English PDF

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GB/T 10923-2009: Test code of accuracy for metal forming machine
Status: Valid

GB/T 10923: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 10923-2009	879	Add to Cart	6 days	Test code of accuracy for metal forming machine	Valid
GB/T 10923-1989	RFQ	ASK	6 days	Acceptance code of accuracy for metalforming machine	Obsolete

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Basic data

Standard ID: GB/T 10923-2009 (GB/T10923-2009)
Description (Translated English): Test code of accuracy for metal forming machine
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J62
Classification of International Standard: 25.120.10
Word Count Estimation: 40,418
Date of Issue: 2009-03-16
Date of Implementation: 2009-11-01
Older Standard (superseded by this standard): GB/T 10923-1989
Adopted Standard: ISO 230-1-1996, NEQ
Regulation (derived from): National Standard Approval Announcement 2009 No.2 (Total No.142)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the geometric accuracy and precision forging machinery testing methods, inspection and preparation before, using tolerance and Gages. This standard applies to the geometric accuracy and precision of the test all kinds of forging machinery. Does not apply to the operation of forging machinery and parametric tests.

GB/T 10923-2009: Test code of accuracy for metal forming machine

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test code of accuracy for metalforming machine ICS 25.120.10 J62 National Standards of People's Republic of China Replacing GB/T 10923-1989 Forging Machinery General accuracy test (ISO 230-1.1996, NEQ) Posted 2009-03-16 2009-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard ISO 230-1.1996 "General machine testing - Part 1. under no-load or finishing conditions Geometric accuracy of machines." The non-equivalent. This standard replaces GB/T 10923-1989 "Metalforming Machinery accuracy test General." This standard compared with GB/T 10923-1989, the major technical changes as follows. --- Modify the reference standard; --- Increase the uncertainty of the requirements; --- Increased tolerance criteria; --- Increased repeat positioning tolerances; --- Modifications and additions straightness test methods; --- Modify the definition of linear motion, linear motion to increase the test method; --- Modifications and additions flatness testing methods; --- Modification and increased parallelism, equidistant degrees, coincidence degree test methods; --- Modification and increased verticality test methods; --- Revised Appendix A, an increase of flat feet, angle and laser interferometer requirements. Appendix A of this standard is a normative appendix. The standard proposed by China Machinery Industry Federation. This standard by the National Forging Machinery Standardization Technical Committee (SAC/TC220) centralized. This standard was drafted. The Zimmer Jinan Forging Machinery Co., Ltd., Jinan Foundry and Metalforming Machinery Research Institute, Shandong Province, mechanical design Institute. The main drafters of this standard. Ma Liqiang, Chenru Chang, Wang Yiquan. This standard replaces the standards previously issued as follows. GB/T 10923-1989. Forging Machinery General accuracy test

1 Scope

This standard specifies the use of the geometric accuracy and precision forging machinery testing methods, tolerances, and the seizure, inspection before preparation. This standard applies to the geometric accuracy and precision tests of various types of forging machinery. Does not apply to the operation of forging machinery and reference Number of test.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 1219-2008 Indicators GB/T 1800.2 limits and fits - Bases - Part 2. Tolerances, deviations and basic provisions mating (GB/T 1800.2- 1998, eqvISO 286-1. 1988) GB/T 1800.3 limits and fits - Bases - Part 3. standard tolerances and fundamental deviations table of values \u200b\u200b(GB/T 1800.3- 1998, eqvISO 286-1. 1988) GB/T 1800.4 Limits and fits standard tolerance grades and limit deviations for holes and shafts of (GB/T 1800.4-1999, eqvISO 286-2. 1988) GB/T 6092 Squares (GB/T 6092-2004, JISB7526.1995, NEQ) GB/T 6093 Geometrical product specifications (GPS) the length of the standard gauge block (GB/T 6093-2001, eqvISO 3650.1998) GB 6315-2008 cursor with the number of tables and universal angle ruler GB/T 8177 two micrometer diameter (GB/T 8177-2004, ISO /DIS9121.1996, NEQ) GB/T 16455 batten and square levels GB/T 20428 Flat Rock (GB/T 20428-2006, ISO 8512-2.1990, MOD)

3 General

3.1 Test methods and Gages 3.1.1 Test forging machinery precision test methods may be used if it ultra poor (such as inspection using limit gauges) or by the method of measurement errors. Must take into account the measurement uncertainty and test methods gage caused 3.1.2 test. Gage and the total error tolerance should be the subject project phase Adapt to different places with different test its accuracy will vary with the subject, the subject must be accompanied by a single calibration accuracy. Forging machines with accuracy test Tools and devices in Appendix A. Airflow, light and thermal radiation (such as sunlight or too close to the lights, etc.) should be to prevent interference testing 3.1.3. Gage before use and environmental temperature Degree of balance, isothermal. 3.1.4 The test should be repeated several times, the average of the measured values \u200b\u200bof the test results. Each measured data should not differ too much, otherwise it should be From the test methods, the gage or forging machinery itself to find the reasons. 3.2 Tolerance 3.2.1 Forging mechanical precision test of tolerance Tolerance limit is the amount of variation in size, shape, position and displacement can not be exceeded. 3.2.1.1 Unit and measuring range Tolerances should be specified. ......

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