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GB/T 18325.3-2009 English PDF

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GB/T 18325.3-2009: Plain bearing -- Bearing fatigue -- Part 3: Test on plain strips of a metallic multilayer bearing material
Status: Valid
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GB/T 18325.3-2009English154 Add to Cart 3 days [Need to translate] Plain bearing -- Bearing fatigue -- Part 3: Test on plain strips of a metallic multilayer bearing material Valid GB/T 18325.3-2009

PDF similar to GB/T 18325.3-2009


Standard similar to GB/T 18325.3-2009

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Basic data

Standard ID GB/T 18325.3-2009 (GB/T18325.3-2009)
Description (Translated English) Plain bearing -- Bearing fatigue -- Part 3: Test on plain strips of a metallic multilayer bearing material
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J12
Classification of International Standard 21.100.10
Word Count Estimation 8,894
Date of Issue 2009-05-26
Date of Implementation 2009-12-01
Adopted Standard ISO 7905-3-1995, IDT
Regulation (derived from) PRC National Standard Approval Announcement 2009 No.7 (Total No.147)
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 method for determining metal multilayer bearing material fatigue limit of a flat belt. In addition, you can also study the impact of hydraulic and temperature changes on the strip.

GB/T 18325.3-2009: Plain bearing -- Bearing fatigue -- Part 3: Test on plain strips of a metallic multilayer bearing material


---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.
Plain bearing Bearing fatigue Part 3. Test on plain strips of a metallic multilayer bearing material ICS 21.100.10 J12 National Standards of People's Republic of China GB/T 18325.3-2009/ISO 7905-3.1995 Sliding Bearing fatigue Part 3. The metal multilayer bearing material flat belt test (ISO 7905-3.1995, IDT) Posted 2009-05-26 2009-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 18325 "sliding bearings fatigue" consists of the following four components. --- Part 1. hydrodynamic lubrication conditions in the test machine and plain bearings fatigue practical application; --- Part 2. a cylindrical metal bearing material test specimens; --- Part 3. metallic multilayer bearing material flat belt test; --- Part 4. metallic multilayer bearing material pad test. This section GB/T 18325 Part 3. This section identical with ISO 7905-3.1995 "Sliding Bearing fatigue - Part 3. Metal multilayer bearing material flat belt test." This section is equivalent translation ISO 7905-3.1995. For ease of use, this section made the following editorial changes. --- "This International Standard" be replaced by "this section"; --- Delete international standards foreword. This part is proposed by China Machinery Industry Federation. Bearing this in part by the National Standardization Technical Committee (SAC/TC236) centralized. This section is responsible for drafting unit. Productivity Promotion Center in the machine. Participated in the drafting of this section. Changzhou Hengye Bearing Materials Co., Ltd. This part of the National Standardization Technical Committee Secretariat slide bearing responsible for the interpretation. This section first release. GB/T 18325.3-2009/ISO 7905-3.1995 Sliding Bearing fatigue Part 3. The metal multilayer bearing material flat belt test

1 Scope

GB/T 18325 This section provides multi-tiered approach to determine the metal bearing material fatigue limit of the flat belt. In addition, research also Hydraulic pressure and temperature changes on the strip.

2 Sample

The specimen shall comply with rectangular cross-section in Figure 1 size flat strip. To avoid damage to the clamp at the start, the sample should be carefully grinding down the corner Contour corner, the test section shall be as shown in Fig. Millimeters Total thickness Ju / mm Bearing metal and/or) Plating layer thickness Ju 2 / mm test length mm 3-5 Supply and demand sides Consult Figure 1 Sample Size and Shape For multilayer bearing material, the layers of sample sizes should be representative of the manufacturing process, and the sample should be finished and finished products to the same surface quality the amount. Prior to testing and should be avoided during sample surface mechanical damage or corrosion. The disadvantage of this test method is the lack of bearing system Residual stress generated in the manufacturing process may be accompanied.

3 Test Method

Test principle shown in Figure 2. Sample should be clamped at one end and the other end by a force or displacement applied load. From the pull load should be on the work surface Out into the compression fluctuations. In addition, a compression or tension may be applied prestress, in order to assess the correlation between the mean stress. Test equipment should be placed Equipped with lubricating oil tank, oil temperature fluctuation ± 2 ℃ in; or test at ± 2 ℃ in air at ambient temperature fluctuations. Shall be measured by means of bending stress in the bearing liner near the back near the clamping gage. Thus, in the first known strain gauges and The relative position of the crack, in the case of lining thickness and elastic modulus steel back and, bending damage can be estimated at the required cross-section stress. Note. The stress state plane bending under the multilayered tape may be obtained by theoretical calculation. Test frequency should be between 50Hz ~ 80Hz. Dye penetrant method shall be used to crack or microscopic examination. By force amplitude (F) Or displacement (Ju) to control. GB/T 18325.3-2009/ISO 7905-3.1995

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