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1、 J I S GX0588 95 = 4933b08 0533990 b05 JIS l i i l UDC 669.141.246:620.191 I JAPANESE INDUSTRIAL STANDARD Visual examination and classification of surface quality for steel castings JIS G 0588-1995 Translated and Published by Japanese Standards Association Printed in Japan 13 S Copyright Japanese St
2、andards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- In the event of any doubt arising, the original Standard in Japanese is to be f
3、inal authority Errata for JIS (English edition) are printed in Standardization Journal, published monthly by the Japanese Standards Association. Errata will be provided upon request, please contact: Business Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, JAPAN 107 TEL.
4、 03-3583-8002 FAX. 03-3583-0462 Errata are also provided to subscribers of JIS (English edition) in Monthly Information. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo repro
5、duction or networking permitted without license from IHS -,-,- JIS G*O588 95 W 4933bO8 0533992 488 UDC 669.141.246:620.191 JAPANESE INDUSTRIAL STANDARD J I S Visual examination and classification G 0588-1995 of surface quality for steel castings 1. Scope examination and classification of surface qua
6、lity for steel castings teemed into sand moulds excluding those for machined surface. This Japanese Industrial Standard specifies the method for visual Remarks: The standard cited in this Standard is as given in the following: JIS G 0307 Steel castings - General technical requirements 2. Definitions
7、 follows: The definitions of main terms used in this Standard are as sand inclusions and slag inclusions taken in due to the lack of strength of sand mould for foundry, insufficient A defect of which sand, slag, etc. are cleaning of moulds, inappropriate casting operation, or the like. gas porosity
8、(pinhole, or blowhole) A concavity caused by evolution of gases contained in the molten metal, moisture in the mould, or the like. A concavity less than 3 mm in diameter is referred to as the “pinhole“, while 3 mm or more thereof the “blowhole“. surface folding low casting temperature, too slow cast
9、ing speed, or the like. A wrinkle which is appreciable its base produced by too chaplets areas cores are remained because of insufficient fusion. A defect of which metallic devices used to maintain the metal removal marks section where a feeder head, gate, or the like is cut off. A mark like grooves
10、 produced by finishing the gas cutting marks head, gate, or the like is removed with gas. A mark produced in the cut-off area where a feeder casting fin metal along the boundary between moulds (such as between a cope and drag, core and cope or drag). A projection produced in the steel casting by flu
11、shing molten sand burning surface of the steel casting because of too high casting temperature, too low refractoriness of the sand, or the like. A sintered state of which foundry sand is sticked on the weld repair areas area is rectified by grinding. The state of ground surface where the beads in we
12、lded wart, dent due to partial peeling-off of foundry sand, sticking of slag, or the like. Unevenness such as depression produced on the casting surface Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale,
13、 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S Gr0588 95 4933608 0533993 334 D Type of defect Sand inclusions and slag inclusions (wart and dent) * Gas porosity (blow) * Surface folding Chaplets area (internal chills areas) * Metal removal marks
14、Gas cutting marks Casting fin Sand burning (metal penetration) * Weld repair areas 2 G 0588-1995 Reference photograph Attached Figure 1 Attached Figure 2 Attached Figure 3 Attached Figure 4 Attached Figure 5 Attached Figure 6 Attached Figure 7 Attached Figure 8 Attached Figure 9 blow The state of ho
15、les produced by evolution of gases at an area where some substance likely to generate gases such as moisture in the mould con- tacts with the molten metal. The shape of the hole is roundish, and some of holes are remarkably large. internal chills areas chill, supporting leg, or the like is revealed
16、on the casting surface. A portion where the internal chilling block, internal metal penetration A mixture of metal and foundry sand produced at an area where the mould contacts with molten metal of high temperature or stamping of sand is imperfect, or unevenness of the casting surface caused by pene
17、tration of molten metal into foundry sand. reference photographs the type of defect and expressed as 5 classes for each type according to their significance levels (see Attached Figures 1 to 9). Pictures 100 mm x 60 mm in size categorized by Type of defect The type of defects on the casting surface
18、of the steel casting visually observed and corresponding reference photographs thereto shall be classi- fied into 9 types as given in Table 1. Remarks: In the case where other defects than those listed in Table 1 are used, it shall be agreed between the purchaser and supplier taking into considerati
19、on the service condition and functions. 4. Method for examination and classification The methods for examination and classification of the casting surface shall be as given in the following: (1) General requirements for the examination method shall be in accordance with (1) of 3.4 (Appearance test)
20、in JIS G 0307. In the case of this Standard, however, the examination shall be carried out visually, but not with a mag- nifying glass. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49
21、:20 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS G*0588 95 4933608 0531994 250 3 G 0588-1995 As to the time of examination, it shall be, as a rule, carried out prior to shipment. The location subject to the examination shall be agreed between the pur- chaser and supp
22、lier. In examination, the area of one visual field shall be, as a rule, 100 mm x 60 mm. The appearance of casting surface in the visual field to be examined shall be compared with the reference photographs, and graded into classes 1 to 5. Classifying shall be applied to the visual field of the worst
23、 degree of defect in each area to be examined. In the case where two or more types of defects lie in one visual field, the classifying shall be carried out for each type of defect. Report The manufacturer shall report the results of examination as neces- sary. In this case, the following items shall
24、 be reported unless otherwise specified. (1) Date of examination (2) Examined commodity (2.1) Commodity name (2.2) Quality of material (2.3) (3) Environments of examination (3.1) (4) Results of examination (4.1) Area subject to examination (4.2) State of finish of casting surface Auxiliary device(s)
25、 (mirror) used at the time of examination Classification for each type of defects Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without
26、 license from IHS -,-,- J I S G*0588 95 W 4933608 0531995 197m 4 G 0588-1995 Attached Figure 1 Sand inclusions and slag inclusions Class 1 1 I2 3 4 5 6 18 9 10 Class 2 Class 3 3 I 234567891 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11111110
27、01, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*0588 95 W 4933608 0531996 023 5 G 0588-1995 Attached Figure 1 (continued) 31234557891 Class 4 Class 5 Copyright Japanese Standards Association Provided by IHS u
28、nder license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*588 95 M 4933608 0531i997 TbT 6 G 0588-1995 Attached Figure 2 Gas porosity (pinhole or blowhole) Class 1 Cla
29、ss 2 Class 3 1236 6 7 8 9: Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S Gm0588 95 4933608 0531998
30、 9Tb D 7 G 0588-1995 Attached Figure 2 (continued) Class 4 . Class 5 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from
31、 IHS -,-,- 8 G 0588-1995 J I S Gx05B8 95 4733608 0533779 832 Attached Figure 3 Surface folding Class 1 Class 2 Class 3 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reprodu
32、ction or networking permitted without license from IHS -,-,- J I S G*0588 95 4933608 0532000 1-51? W 9 G 0588-1995 Attached Figure 3 (continued) Class 4 Class 5 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for
33、 Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS G*0588 95 W 4933608 0532003 O99 W 10 G 0588-1995 Attached Figure 4 Chaplets areas Class 1 Class 2 Class 3 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee
34、=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*0588 95 4933608 0532002 T25 D 11 G 0588-1995 Attached Figure 4 (continued) Class 4 Class 5 Copyright Japanese Standards Association Provi
35、ded by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 12 G 0588-1995 J I S G*O588 95 = 4933608 0532003 961 Attached Figure 5 Metal removal marks Class 1 Class
36、 2 Class 3 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 13 G 0588-1995 Attached Figure 5 (continued) Cl
37、ass 4 . . . 2? ? 3. i Class 5 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*0588 75 Li733608 053
38、2005 734 14 G 0588-1995 Attached Figure 6 Gas cutting marks Class 1 Class 2 Class 3 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted witho
39、ut license from IHS -,-,- J I S Ga0588 95 4933608 053200b 670 G 0588-1995 15 Attached Figure 6 (continued) Class 4 Class 5 I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo r
40、eproduction or networking permitted without license from IHS -,-,- J I S G*Q58B 95 R Y933608 0532007 507 16 G 0588-1995 Attached Figure 7 Casting f i n Class 1 , !2?4 ( Class 3 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing
41、, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S 6805B 95 W 46133bQA 0532808 443 W 17 G 0588-1995 Attached Figure 7 (continued) Class 4 Class 5 Copyright Japanese Standards Association Provided by IHS under license with JSAL
42、icensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*0588 95 m 4933608 0532007 38T m 18 G 0588-1995 Attached Figure 8 Sand burning Class Class 1 2 Class 3 Copyright Japanese Standards
43、 Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 19 G 0588-1995 Attached Figure 8 (continued) Class 4 Class 5 Copyright Japanese Standa
44、rds Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G%588 95 H 4933608 05320LL T38 20 G 0588-1995 Attached Figure 9 Weld repair a
45、reas Class 1 Class 2 Class 3 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S G*588 95 U 4733608 0532
46、032 774 m 2 1. G 0588-1995 Attached Figure 9 (continued) Class 4 Class 5 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 19:49:20 MDTNo reproduction or networking permitted without license from IHS -,-,- I J I S 6*0588 95 4933608 0532023 800 H G 0588-1995 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 199