GB/T 17455-2008 English PDFUS$94.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 17455-2008: Non-destructive testing -- Metallographic replica techniques of surface examination Status: Valid GB/T 17455: Historical versions
Basic dataStandard ID: GB/T 17455-2008 (GB/T17455-2008)Description (Translated English): Non-destructive testing -- Metallographic replica techniques of surface examination Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J04 Classification of International Standard: 19.100 Word Count Estimation: 5,574 Date of Issue: 2008-07-30 Date of Implementation: 2009-02-01 Older Standard (superseded by this standard): GB/T 17455-1998 Adopted Standard: ISO 3057-1998, IDT Regulation (derived from): National Standard Approval Announcement 2008 No.12 (Total No.125) 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 provides a transparent nitrocellulose membrane material, cellulose acetate or plastic material surface inspection of complex technologies. The technique for recording by a mechanical or metallurgical state of the metal surface causes unevenness. The advantage of the method specified in the standard that applies to certain parts difficult to detect or do not allow the destruction of jobs. Moreover, the replica pieces can be observed in the laboratory or to the high-powered microscope with low optical devices in the field. GB/T 17455-2008: Non-destructive testing -- Metallographic replica techniques of surface examination---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. Non-destructive testing. Metallographic replica techniques of surface examination ICS 19.100 J04 National Standards of People's Republic of China GB/T 17455-2008/ISO 3057.1998 Replacing GB/T 17455-1998 Non-destructive testing - Metallographic replica surface inspection technology (ISO 3057.1998, IDT) Posted 2008-07-30 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard is identical with ISO 3057.1998 "Non-destructive testing - Metallographic replica surface inspection technology" (in English). This standard is equivalent translation ISO 3057.1998. For ease of use, this standard made the following editorial changes. --- "This International Standard" be replaced by "this standard"; --- Delete international standards foreword. This standard replaces GB/T 17455-1998 "Non-destructive testing - Metallographic replica surface inspection technology." This standard 17455-1998 major changes compared to GB/T as follows. --- Modifications and adjustments of the range (the 1998 edition Chapters 1 and 2, Chapter 1 of this edition); --- Modified replica operation (1998 edition, Chapter 4, Section 3 of this edition); --- Added Note 2 and Note 3. The standard proposed by China Machinery Industry Federation. The standard non-destructive testing by the National Standardization Technical Committee (SAC/TC56) centralized. This standard was drafted. Shanghai Baosteel Industry Inspection Corporation, Shanghai Research Institute of Materials, Shanghai on material Engineering Materials Testing Limited. The main drafters of this standard. terrestrial frequency, FUNCTIONALIS Wang Bin, Yang Li. This standard replaces the standards previously issued as follows. --- GB/T 17455-1998. GB/T 17455-2008/ISO 3057.1998 Non-destructive testing - Metallographic replica surface inspection technology1 ScopeThis standard specifies a transparent nitrocellulose membrane material, cellulose acetate or plastic material (with or without a carrier) surface detection Replica technique for recording mechanical or metallurgical state of the metal surface causes unevenness. Advantages of this method is that the standards required by applicable to certain parts difficult to detect or does not allow the destruction of the workpiece. Moreover, the complex type member can On-site observation or to laboratory testing under a powerful microscope with a low power optical devices. Preparation 2 detection surface 2.1 cleaning the detection surface Should be sufficiently cleaned surface of the subject, the removal of grease and dried. Using a suitable solvent, with acetone or ethanol to remove surface oil, and Heated air dry surface. 2.2 Preparation of the macro detection surface Preparation of the macro detection surface suitable for all types of surfaces, including surface rupture caused by the operation. According to the provisions of 2.1, only the detection surface Surface cleaning, degreasing and drying. 2.3 Preparation of microscopic detection surface 2.3.1 Detection aims to show the status of surface metallurgy. After removing the grease, the surface should be a series of detailed mechanical polishing, this research Procedure should be finer than before the procedure after grinding. Typically, surface grinding depth less than 0.2mm. In many cases, the grinding depth is very shallow of. When grinding operation, it should not have too much pressure, so as not to overheat the metal hardening occurs. Each time the last grinding grinding Fang Xiangyi Cross or vertical direction, and after each operation with acetone or ethanol to clean the surface. 2.3.2 above mechanical polishing, the need for final polishing. Such polishing may be any of the following methods. a) by selecting the appropriate equipment and electrolyte electrolytic method; b) method in a small electrolytic cell; c) to generate a compliant surface, the available diamond abrasive paste, aluminum oxide or other compounds mechanically polished. After the completion of polishing, the surface should be as clean and dry 2.1. Is the final stage of surface preparation using appropriate reagents moderate Erosion. After etching, the surface should be as clean and dry again 2.1. 3 complex-type operation 3.1 Overview Should ensure that replica operated at all as dry and dusty conditions have been removed. 3.2 replica film material Membrane material should be transparent and nitrocellulose, cellulose acetate or plastic as the basic raw material. Pay particular attention to the film should not be agitated before application Material, otherwise it will form a bubble, adversely affect the results. Membrane material should be spread on the surface of the subject to form a thin layer of uniform thickness, the membrane material must Shall be uniform, no bubbles and brush marks, and then the coating material to the manufacturer's instructions for drying. 3.3 diaphragm replica 3.3.1 subject surface wetting with a suitable solvent. Select has the right ingredients, size and thickness to ensure the stability and representative complex A sheet of plastic film material is applied to the surface of the subject. 3.3.2 recommends operating the central part of the plastic film placed on the surface of the subject near the center. This helps remove excess solvent, and can Avoid the formation of wrinkles and bubbles. To facilitate plastic film adhered to the metal surface, applying some pressure on the finger the plastic film, the pressure The middle to both sides of the direction of the applied from the inside out. GB/T 17455-2008/ISO 3057.1998 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 17455-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 17455-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 17455-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 17455-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
