1 de 17 28/11/2013 21:11 About Us Casting Products Casting Workshop Machining Workshop Inspection Certif ASTM A 802 Standard Practice for Steel Castings, Iron Castings, Surface Accep The object of this standard is to facilitate cooperation between founder and casting purchaser in d quality level required. It should assist in avoiding misunderstanding arising from imprecise descriptions at the order st surface that is amendable to a particular techniques of non-destructive testing. The use of the com on photographs which can introduce uncertainties concerning interpretation, particularly w irregularities. The casting designer and purchasers can denote the level one to four on the drawings as the re founder, Dandong Foundry, will check the photos, and learn about the requirements. The compara quality inspection. Visual Inspection Acceptance Criteria Surface Feature Level I Level II Leve Surface Texture A1 A2 A Mon-metallic Inclusions B1 B2 B Gas Porosity C1 C2 C Fusion Discontinuities - D1 D Expansion Discontinuities - - E Inserts - - F Metal Removal Marks (Thermal Dressing) G1 G2 G Metal Removal Marks (Mechanical Dressing) H1 H3 H Metal Removal Marks (Welds) J1 J2 J A. Surface Texture - the natural surface of the casting after shot blasting. B. Non-Metallic Inclusions - Non-metallic material trapped on the surface of castings. C. Gas Porosity - Indications of gas t the casing surface. D. Fusion Discontinuities - surface irregularities giving a wrinkled appearance. E. Expansion Discontinuities - slightly raised surface irregularities.
2 de 17 28/11/2013 21:11 F. Inserts - indications of chaplets (sand core supports) or internal chills. G. Metal Removal Marks (Thermal Dressing) - surface remaining after using oxy-ga metal removal. H. Metal Removal Marks (Mechanical Dressing) - surface remaining after using a mec surface or a previously thermally dressed surface. J. Metal Removal Marks (Welds) - indications of welds fully or partially removed by therm Comparators for the Definition of Surface Quality of Iron and St SURFACE TEXTURE - A1 SURFAC
3 de 17 28/11/2013 21:11 SURFACE TEXTURE - A3 SURFAC
4 de 17 28/11/2013 21:11 NON-METALLIC INCLUSIONS - B1 NON-METAL
5 de 17 28/11/2013 21:11 NON-METALLIC INCLUSIONS - B3 NON-METAL
6 de 17 28/11/2013 21:11 GAS POROSITY - C1 GAS
7 de 17 28/11/2013 21:11 GAS POROSITY - C3 GAS
8 de 17 28/11/2013 21:11 FUSION DISCONTINUITIES - D1 FUSION DIS
9 de 17 28/11/2013 21:11 FUSION DISCONTINUITIES - D5
10 de 17 28/11/2013 21:11 EXPANSION DISCONTINUITIES - E3 EXPANSION D
11 de 17 28/11/2013 21:11 INSERTS - F1 IN
12 de 17 28/11/2013 21:11 METAL REMOVAL MARKS - THERMAL DRESSING - G1 METAL REMOVAL MAR
13 de 17 28/11/2013 21:11 METAL REMOVAL MARKS (THERMAL DRESSING) - G3 METAL REMOVAL MAR
14 de 17 28/11/2013 21:11 METAL REMOVAL MARKS (MECHANICAL DRESSING) - H1 METAL REMOVAL MARK
15 de 17 28/11/2013 21:11 METAL REMOVAL MARKS (MECHANICAL DRESSING) - H4 METAL REMOVAL MARK
16 de 17 28/11/2013 21:11 METAL REMOVAL MARKS (WELDS) - J1 METAL REMOV
17 de 17 28/11/2013 21:11 METAL REMOVAL MARKS (WELDS) - J3 METAL REMOV Home More Articles Gray Iron Castings Ductile Iron Castings Cast Steel Castings Green Sand Iron Castings Automatic Molding Castings Shell Molding Iron Castings Sand Mold Steel Castings Lost Wa Boiler Metal Parts Construction Machinery Parts Agricultural Machinery Parts Pump & Valv Manholes Other Iron & Steel Castings Prices Per Pound, Kg and Ton Cast iron Price Calcul DANDONG RUIDING FOUNDING CO., LTD. SITEMAP CONTACT US Tel: 0086-415-6670086 Fax: 0086-415-3356856 Email: sales@iron-foundry.com Email: galenchi ADDRESS: No.35 North Road, Qianyang Town, Dandong City, Liaoning, P.R. China 118301