GB/T 37400.9-2019 English PDF

US$278.00 · In stock
Delivery: <= 1 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 37400.9-2019: Heavy mechanical general technical specification -- Part 9: Machining parts
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37400.9-2019	278	Add to Cart	1 days	Heavy mechanical general technical specification -- Part 9: Machining parts	Valid

Similar standards

GB/T 38238   GB/T 37400.5   GB/T 37122   GB/T 37400.18   GB/T 37400.17   GB/T 37400.11   

Basic data

Standard ID: GB/T 37400.9-2019 (GB/T37400.9-2019)
Description (Translated English): Heavy mechanical general technical specification -- Part 9: Machining parts
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 25.010
Word Count Estimation: 14,194
Date of Issue: 2019-03-25
Date of Implementation: 2019-10-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37400.9-2019: Heavy mechanical general technical specification -- Part 9: Machining parts

---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.
Heavy mechanical general technical specification - Part 9. Machining parts ICS 25.010 J04 National Standards of People's Republic of China General technical conditions for heavy machinery Part 9. Machining parts Published on.2019-03-25 2019-10-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 General requirements 1 4 unfilled tolerance 3 5 keyway symmetry without tolerance 6 6 Screw hole and hole hole unfilled position tolerance 6 7 thread 6 8 center hole 6 9 No surface roughness 7 10 workpiece edge 7 11 Hole center offset in deep hole drilling 8 12 Rules that allow machining by tool shape 8 Figure 1 Rotary body parts are not chamfered 1 Figure 2 Parts are not marked round 2 Figure 3 outer edge, no burrs, wear -0.1mm~-0.3mm 7 Figure 4 Inner edge, transition to 0mm~ 0.5mm 8 Figure 5 Tool outline 8 for rounding and cornering Figure 6 Several possible bit face shapes 8 Figure 7 Countersink plane shape 9 Figure 8 Example of drill bit selection for stepped holes Table 1 Unfilled chamfer size 2 Table 2 Unfilled round size 2 Table 3 Unmarked limit deviation of length dimension 3 Table 4 Unmarked limit deviation of rounding radius and chamfer height 4 Table 5 Unintentional limit deviation of angle (inclination) size 4 Table 6 Unfilled tolerances for straightness and flatness 4 Table 7. Verticality is not tolerated 5 Table 8 Symmetry without tolerance 5 Table 9 Coaxiality and Bounce Unfilled Tolerance 5 Table 10 Keyway symmetry is not tolerated 6 Table 11 Screw hole unmarked position tolerance 6 Table 12 Optical hole unmarked position tolerance 6 Table 13 No surface roughness 7

Foreword

GB/T 37400 "General Technical Conditions for Heavy Machinery" is divided into 16 parts. --- Part 1. Product inspection; --- Part 2. Flame cutting parts; ---Part 3. Welded parts; ---Part 4. Cast iron parts; ---Part 5. Non-ferrous metal castings; ---Part 6. Steel castings; ---Part 7. Repair welding of steel castings; ---Part 8. Forgings; ---Part 9. Machining parts; --- Part 10. Assembly; --- Part 11. piping; --- Part 12. Painting; --- Part 13. Packaging; ---Part 14. Non-destructive testing of steel castings; ---Part 15. Non-destructive testing of forged steel parts; --- Part 16. Hydraulic system. This part is the ninth part of GB/T 37400. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by the National Technical Committee for Metallurgical Equipment Standardization (SAC/TC409). This section drafted by. CITIC Heavy Industry Machinery Co., Ltd., China Metallurgical Shaanxi Heavy Industry Equipment Co., Ltd., Shanghai Electric Heavy Milling Equipment Co., Ltd., Hengyang Zhonggang Hengzhong Equipment Co., Ltd., Taiyuan Heavy Industry Co., Ltd., China Yizhong Group Co., Ltd., Taier Heavy Industrial Co., Ltd., China National Heavy Machinery Research Institute Co., Ltd., Erzhong (Deyang) Heavy Equipment Co., Ltd. Drafters of this section. Liu Jinglan, Zhang Zhiyong, Wang Zhimin, Yang Xuejun, Huang Pengpeng, Zhang Hui, Zhu Zhirong, Cheng Sheng, Zhao Shengyu, Li Yong, Xiao Tiyun, Yang Fei, Zuo Kaihong, Cao Yizhong, Tan Jia, Li Xuemin, Cao Guiyue, Xia Qinghua, Yang Fengchan, Xia Juan, Sun Xiangyang, Liu Shibin, Liu Honghong. General technical conditions for heavy machinery Part 9. Machining parts

1 Scope

This part of GB/T 37400 specifies the general requirements for machining and unfilled tolerances, for keyways, bores and pitches, center holes, unfilled Specific requirements are imposed on the surface roughness and the shape of the tool that is allowed to be used. This section applies to the cutting of heavy machinery parts. Cutting of other product parts can also be referred to.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 3 common thread finish, shoulder distance, undercut and chamfer GB/T 197-2003 ordinary thread tolerance GB/T 1184-1996 Shape and position tolerances without tolerance values GB/T 1804-2000 General tolerances and tolerances for linear and angular dimensions without tolerances GB/T 5277 fastener bolts and screw through holes

3 General requirements

3.1 After processing the parts, the product drawings and technical documents and the requirements of this part should be met. 3.2 Parts should be inspected and accepted according to the process, and can be transferred to the next process after passing the previous process inspection. 3.3 When casting steel parts, cast iron parts, non-ferrous metal castings, forgings, if there are defects such as blisters, shrinkage holes, slag inclusions, cracks, etc., do not reduce zero Under the premise of strength and performance, it is allowed to be repaired in accordance with the relevant provisions of relevant standards, and processing can be continued after passing the inspection. 3.4 The processed parts are not allowed to have burrs. Except for the requirements of the product drawings, sharp edges and sharp corners are not allowed, and the sealing mating surfaces and stresses are involved. The chamfering and rounding dimensions of the concentrated area shall be clearly stated in the product drawings. --- When the chamfer is not indicated in the part drawing, it should be chamfered according to the requirements of Figure 1 and Table 1. The chamfer of the non-rotating body parts is in accordance with Table 1. In the row, the main parameter D(d) takes the shorter of the two adjacent geometrical features of the chamfer. Description. D---outer diameter; D---inner diameter; C---Chamfer height. Figure 1 Rotary body parts are not chamfered ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 37400.9-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 37400.9-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically in 24 hours. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 37400.9-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 37400.9-2019_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.