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GB/T 39142.1-2020 English PDF

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GB/T 39142.1-2020: Specification of plastic-steel bilayer self-lubricating materials - Part 1: Running-in layer with modified PTFE tape
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GB/T 39142.1-2020English189 Add to Cart 3 days [Need to translate] Specification of plastic-steel bilayer self-lubricating materials - Part 1: Running-in layer with modified PTFE tape Valid GB/T 39142.1-2020

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Basic data

Standard ID GB/T 39142.1-2020 (GB/T39142.1-2020)
Description (Translated English) Specification of plastic-steel bilayer self-lubricating materials - Part 1: Running-in layer with modified PTFE tape
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J12
Classification of International Standard 21.100.10
Word Count Estimation 10,160
Date of Issue 2020-10-11
Date of Implementation 2021-05-01
Regulation (derived from) National Standard Announcement No. 21 of 2020
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 39142.1-2020: Specification of plastic-steel bilayer self-lubricating materials - Part 1: Running-in layer with modified PTFE tape


---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.
Specification of plastic-steel bilayer self-lubricating materials - Part 1.Running-in layer with modified PTFE tape ICS 21.100.10 J12 National Standards of People's Republic of China Plastic-steel back two-layer bonding composite self-lubricating sheet Technical conditions part 1.modified polytetrafluoroethylene (PTFE) Anti-friction layer sheet 2020-10-11 released 2021-05-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

GB/T 39142 "Plastic-steel back two-layer bonding composite self-lubricating sheet technical conditions" is planned to be divided into the following parts. ---Part 1.Plates with modified polytetrafluoroethylene (PTFE) anti-friction layer; This part is Part 1 of GB/T 39142. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part was proposed by China Machinery Industry Federation. This part is under the jurisdiction of the National Sliding Bearing Standardization Technical Committee (SAC/TC236). Drafting organizations of this section. Mingyang Technology (Suzhou) Co., Ltd., China National Machinery Productivity Promotion Center, Zhejiang Shuangfei Oilless Bearing Co., Ltd. Co., Ltd., Zhejiang Changsheng Sliding Bearing Co., Ltd., Zhejiang Zhongda Precision Components Co., Ltd. Plastic-steel back two-layer bonding composite self-lubricating sheet Technical conditions part 1.modified polytetrafluoroethylene (PTFE) Anti-friction layer sheet

1 Scope

This part of GB/T 39142 stipulates that the surface plastic layer is modified polytetrafluoroethylene plastic-steel back two-layer bonding composite self-lubricating sheet The material structure characteristics, technical requirements and test methods. This section applies to the self-lubricating board (hereinafter referred to as the board) made by the plastic layer of modified polytetrafluoroethylene and steel back bonding.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 1041 Determination of plastic compression properties GB/T 3960 Plastic sliding friction and wear test method GB/T 9286 Cross-cut test of paint and varnish film

3 Structural features

The board is composed of a surface plastic layer and a steel back layer by bonding. The surface plastic layer adopts modified polytetrafluoroethylene, and its thickness is 0.1mm~1.0mm. The steel back layer is made of high-quality carbon structural steel, and the carbon content is generally not more than 0.08%. The surface of the steel back can be galvanized or tinned to prevent corrosion.

4 Technical requirements

4.1 Bonding force between layers According to the method specified in 5.1, the peeling condition of the board meets the 0-level standard. 4.2 Chemical stability The plate is tested for chemical stability according to the requirements of 5.2, and the weight change rate meets the requirements of Table 1. 4.3 Compression set The plate is tested according to the test conditions specified in 5.3, and the thickness reduction rate of the sample meets the requirements of Table 2.

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