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GB 24388-2009: [GB/T 24388-2009] Noise limits for press brake and flanging machine
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 24388-2009 | English | 159 |
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[GB/T 24388-2009] Noise limits for press brake and flanging machine
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GB 24388-2009
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Basic data | Standard ID | GB 24388-2009 (GB24388-2009) | | Description (Translated English) | [GB/T 24388-2009] Noise limits for press brake and flanging machine | | Sector / Industry | National Standard | | Classification of Chinese Standard | J62 | | Classification of International Standard | 25.120.10 | | Word Count Estimation | 5,571 | | 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 mechanical bending of sound power level and sound pressure level of the noise limits. This standard applies to bending machinery, including various types of sheet metal bending machine, folding machine. | GB 24388-2009: [GB/T 24388-2009] Noise limits for press brake and flanging 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.
Noise limits for press brake and flanging machine
ICS 25.120.10
J62
National Standards of People's Republic of China
Bending mechanical noise limits
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 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., Wuxi silky Machinery Co., Ltd., Shanghai Machine Tool Plant punching.
The main drafters of this standard. Zhou Jianjun, Zeng Li Quan, Yang Minzhe, Ping Tung-liang, Li Deming.
This standard is the first release.
Bending mechanical noise limits
1 Scope
This standard specifies the mechanical bending of sound power level and sound pressure level of the noise limits.
This standard applies to bending machinery, including various types of sheet metal bending machine, folding machine.
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
Bending mechanical noise into sound power level, sound pressure level requirements, and according to the type of bending machine are given noise limits.
Noise limits 3.1 plate bending machine
3.1.1 plate bending machine sound power level limits
Plate bending machine during continuous idling noise A-weighted sound power level LWA shall not exceed specified in Table 1.
Table 1
Plate bending machine Transmission Nominal force/kN limit sound power level LWA/dB (A)
Mechanical transmission
≤630 100
> 630 ~ 2500110
Hydraulic transmission
≤630 95
> 630 ~ 2500100
> 2500105
3.1.2 plate bending machine sound pressure level limit
Table 2
Mechanical transmission
≤630 85
> 630 ~ 250 090
Hydraulic transmission
≤630 82
> 630 ~ 250 085
> 250 088
Impulse noise 3.1.3 plate bending machine SPL
Specified in Table 3.
Table 3
≤630 95
> 630 ~ 2500100
Noise limits 3.2 hemming machine
3.2.1 Flap machine sound power level limits
Folding machine during continuous idling noise A-weighted sound power level LWA shall not exceed the table 4.
Table 4
The number of swings folding beam can be folded thickness/mm sound power level limit value LWA/dB (A)
≤4
≤2.5 95
> 102 2.5
> 4
≤2.5 98
> 105 2.5
3.2.2 Flap machine sound pressure level limit
Table 5
≤4
≤2.5 82
> 2.5 86
> 4
≤2.5 84
> 2.5 88
3.2.3 Impulse noise folding machine SPL
Table 6
≤4
≤2.5 92
> 2.5 96
> 4
≤2.5 94
> 2.5 98
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 also be measured
Sound power level to the noise level of conformity assessment basis.
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