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GB/T 29548-2024 English PDF

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Q: Should I purchase the latest version GB/T 29548-2024?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 29548-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$289.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 29548-2024: High speed precision straight side press - Testing of the accuracy
Status: Valid

GB/T 29548: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29548-2024	289	Add to Cart	3 days	High speed precision straight side press - Testing of the accuracy	Valid
GB/T 29548-2013	259	Add to Cart	3 days	High speed precision straight side press -- Testing of the accuracy	Valid

Similar standards

JB/T 13910.3 JB/T 13910.2 GB/T 35091 GB/T 29547 GB/T 29546

Basic data

Standard ID: GB/T 29548-2024 (GB/T29548-2024)
Description (Translated English): High speed precision straight side press - Testing of the accuracy
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J62
Classification of International Standard: 25.120.10
Word Count Estimation: 14,165
Date of Issue: 2024-09-29
Date of Implementation: 2025-04-01
Older Standard (superseded by this standard): GB/T 29548-2013
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 29548-2024: High speed precision straight side press - Testing of the accuracy

---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.
ICS 25.120.10 CCSJ62 National Standard of the People's Republic of China Replaces GB/T 29548-2013 Closed high speed precision press machine Released on 2024-09-29 2025-04-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 29548-2013 "Closed high-speed precision press accuracy" and is different from GB/T 29548-2013 except for the conclusion. In addition to structural adjustments and editorial changes, the main technical changes are as follows. --- Changed the scope of application (see Chapter 1, Chapter 1 of the.2013 edition); --- Changed the term and definition of "bottom dead center repeatability" (see 3.1, 3.1 of the.2013 edition); --- Changed the definitions of "heating acceleration", "heating constant speed" and "constant temperature and constant speed" (see 3.2, 3.3, 3.4, 3.4, 3.2, 3.3 of the.2013 edition); --- Added terms and definitions for initial state (see 3.5); --- Added inspection requirements when the grade is not specified (see 4.2); --- Added load test time requirements (see 5.6); --- Added inspection of new factory products (see 5.11); --- Increased accuracy test ambient temperature requirements (see 5.12); --- Increased the error requirements for the total clearance of the connection parts of the multi-point press (see 5.13); --- Added new test instruments (see 6.1.1); --- Changed the test method for the parallelism of the lower plane of the slider to the plane on the worktable (see 6.2.1, 6.2.1 of the.2013 edition); --- Changed the tolerance value of the parallelism of the lower plane of the slider to the plane on the worktable (see 6.2.2, 6.2.2 of the.2013 edition); --- Changed the test method for the verticality of the slider stroke to the plane on the worktable (see 6.3.1, 6.3.1 of the.2013 edition); --- Changed the tolerance value of the verticality of the slider stroke to the plane on the worktable (see 6.3.2, 6.3.2 of the.2013 edition); --- Changed the total clearance tolerance of the connection parts (see 6.4.2, 6.4.2 of the.2013 edition); --- Changed the tolerance value of bottom dead center repeatability (see 6.5.2, 6.5.2 of the.2013 edition); --- The test conditions have been changed (see A.1, A.1 of the.2013 edition); --- The test method has been changed (see A.3.2, A.3.2 of the.2013 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Forging Machinery Standardization Technical Committee (SAC/TC220). This document was drafted by. Zhejiang Yiduan Precision Machinery Co., Ltd., Ningbo Jingcheng Forming Equipment Co., Ltd., Yangzhou Forging Machine Tool Co., Ltd. Ltd., Zhejiang Shuaifeng Precision Machinery Manufacturing Co., Ltd., Guangdong Haohui Technology Co., Ltd., Ningbo Amate High Precision Stamping Machine Tool Co., Ltd. Co., Ltd., Zhejiang Yitian Precision Machinery Co., Ltd., and Ningbo Ruijie Automation Technology Co., Ltd. The main drafters of this document are. Wang Da, Li Yongjian, Zhang Qingfei, Zhang Zhijun, Zhu Yinjun, Peng Jianke, Hu Tuo, Ke Zunmang, Zhao Hongsong, Mei Bizhou, Guo Hongchang, Peng Jinli, Si Junbo. The previous versions of this document and the documents it replaces are as follows. ---First published in.2013 as GB/T 29548-2013; ---This is the first revision. Closed high speed precision press machine

1 Scope

This document specifies the accuracy grades and inspection requirements for closed high-speed precision presses and describes the accuracy inspection methods. This document applies to closed high-speed precision presses.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 8170 Rules for rounding off values and expression and determination of limit values GB/T 10923 General rules for precision inspection of forging machinery GB/T 35091 Types and basic parameters of closed high-speed presses

3 Terms and definitions

The terms and definitions defined in GB/T 35091 and the following apply to this document. 3.1 The tolerance of the slider bottom dead point position change during the operation of a closed high-speed precision press. 3.2 The closed high-speed precision press starts running in an accelerated manner from the initial state and accelerates to the rated maximum speed of the press within a certain period of time. process. 3.3 After the heating acceleration test, the closed high-speed precision press is adjusted to 80% of the rated maximum speed and operated at this speed. process. 3.4 The closed high-speed precision press runs at a constant speed of 80% of the rated maximum speed after reaching a thermal equilibrium state through constant speed operation. 3.5 Initial state The closed high-speed precision press machine is shut down for more than 10 hours.

4 Accuracy levels

4.1 The precision of closed high-speed precision presses (hereinafter referred to as presses) is divided into two levels. precision and ultra-precision. The uses of each precision level ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 29548-2024_English be delivered?

Answer: Upon your order, we will start to translate GB/T 29548-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 29548-2024_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 29548-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 29548-2024?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 29548-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.