Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ISO DIS 17779:2020
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Brazing — Specification and qualification of brazing procedures for metallic materials
• Chỉ số phân loại Quốc tế (ICS) / By field: 25.160.01 - Hàn, hàn đồng và hàn vẩy nói chung
• Số trang / Page: 25

Phạm vi áp dụng / Scope of standard

This document specifies requirements for the specification and qualification of brazing procedures for brazing of metallic materials.

The document specifies requirements for brazing of the test piece, testing of the test specimen, essential variables and their range of qualification, acceptance criteria, brazing procedure qualification record (BPQR) and brazing procedure specification (BPS).

Tests shall be carried out in accordance with this document. Additional tests may be required by application documents.

This document does not cover testing of residual stresses, corrosion resistance and impact properties.

This document applies to the following brazing processes in accordance with ISO 857-2 and ISO 4063 with local and global heating:

- 911 Infrared brazing

- 912 Flame brazing, torch brazing

- 913 Laser beam brazing

- 914 Electron beam brazing

- 916 Induction brazing

- 918 Resistance brazing

- 919 Diffusion brazing

- 921 Furnace brazing

- 922 Vacuum brazing

- 923 Dip-bath brazing

- 924 Salt-bath brazing

- 925 Flux bath brazing

- 926 Immersion brazing

- 972 Arc weld brazing

NOTE 1 Annex A gives guidance on general quality requirements for brazing.

NOTE 2 This document does not apply to brazing for aerospace applications covered by ISO 11745.

The principal of this document can be applied to other brazing processes and other materials.