GB 24389-2009 English PDF

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GB 24389-2009: [GB/T 24389-2009] Noise limits for shearing machinery
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 24389-2009	159	Add to Cart	3 days	[GB/T 24389-2009] Noise limits for shearing machinery	Valid

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Basic data

Standard ID: GB 24389-2009 (GB24389-2009)
Description (Translated English): [GB/T 24389-2009] Noise limits for shearing machinery
Sector / Industry: National Standard
Classification of Chinese Standard: J62
Classification of International Standard: 25.120.10
Word Count Estimation: 6,633
Date of Issue: 2009-09-30
Date of Implementation: 2010-07-01
Quoted Standard: GB/T 23281-2009; GB/T 23282-2009
Regulation (derived from): Announcement of Newly Approved National Standards No. 10 of 2009 (No. 150 overall)
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 Chinese standard specifies the shear mechanical sound power level and sound pressure level of the voice sound limits. This standard applies to shearing machinery, including various types of bar shears, alligator shears, shearing, punching shear, ironworker.

GB 24389-2009: [GB/T 24389-2009] Noise limits for shearing machinery

---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.
Noise limits for shearing machinery ICS 25.120.10 J62 National Standards of People's Republic of China Shear mechanical noise limit Posted 2009-09-30 2010-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

3.1.1,3.2.1,3.3.1,3.4.1,3.5.1 this standard, as recommended in Chapter 4, the other mandatory. The standard proposed by China Machinery Industry Federation. This standard by the National Forging Machinery Standardization Technical Committee. This standard is drafted by. Nanhai, Foshan City of HSBC Machine Co., Ltd., Shenyang Forging Machinery Co., Ltd., Tianshui Metalforming Machine Tool Co., the company. The main drafters of this standard. Zhou Jianjun, Zeng Li Quan, Chen Jin, Yue Hansheng, Cai Li Quan. This standard is the first release. Shear mechanical noise limit

1 Scope

This standard specifies the shear mechanical sound power level and sound pressure level of the noise limits. This standard applies to mechanical shear, including various types of bar shears, alligator shears, shears, punching shears, United punching Shears.

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 23281-2009 forging machinery noise level measurement method GB/T 23282-2009 forging machinery sound power level measurement

3 noise limits

Shear mechanical noise into sound power level, sound pressure level requirements, and according to the type of cutting machine are given noise limits. 3.1 bar shears noise limits 3.1.1 bar shears sound power level limits Bar shears during continuous idling noise A-weighted sound power level LWA shall not exceed specified in Table 1. Table 1 Nominal force bar shearing machine/kN limit sound power level LWA/dB (A) < 5000110 ≥5000 114 3.1.2 bar shears SPL Limit 106dB (A). 3.2 alligator shears noise limits 3.2.1 alligator shears sound power level limits Alligator shears during continuous idling noise A-weighted sound power level LWA should not exceed 105dB (A). 3.2.2 alligator shears SPL limit 3.3 Noise limits shears 3.3.1 shears sound power level limits Mechanical transmission shears during continuous idling noise A-weighted sound power level LWA shall not exceed specified in Table 2, hydraulic Shears Machine during continuous idling noise A-weighted sound power level LWA shall not exceed specified in Table 3. Table 2 Shears can cut thickness/mm sound power level limit value LWA/dB (A) ≤10 100 > 10 ~ 20103 > 20114 Table 3 Shears Hydraulic pump flow rate/(L/min) sound power level limit value LWA/dB (A) ≤25 94 > 25 to 63100 > 63103 3.3.2 shears SPL Limit Table 4 ≤10 85 > 10 ~ 2090 > 2093 Table 5 ≤25 81 > 25 to 6385 > 6390 Specified in Table 6. Table 6 ≤10 101 > 10 ~ 20102 > 20103 3.4 punching shear noise limits 3.4.1 punching shear sound power level limits Noise A-weighted sound power level LWA punching shear continuous idling time should not exceed 94dB (A). 3.4.2 punching shear SPL Limit 3.5 Ironworkers noise limits 3.5.1 Ironworkers sound power level limits During continuous idling noise A-weighted sound power level LWA shall not exceed the specified in Table 7. Table 7 Ironworker can shear thickness/mm sound power level limit value LWA/dB (A) ≤10 97 > 10 ~ 16100 > 16106 3.5.2 Ironworkers SPL Limit Table 8 ≤10 83 > 10 ~ 1686 > 1688

4 Measurement

4.1 SPL Measurement Noise level measurement method presses shall comply GB/T 23281-2009 of. 4.2 sound power level measurement Sound power level measurement of the press shall comply with GB/T 23282-2009 of. 4.3 Noise Measurement Description 4.3.1 factory test only measures the noise level. 4.3.2 The new design or improve the design, technology, materials, new products after the noise level should be measured during the performance test; can then measure the noise Sound power level to the noise level of conformity assessment basis. ......

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