价值工程
價值工程
개치공정
VALUE ENGINEERING
2014年
19期
46-47
,共2页
燃油总管%支架%预制定位孔板%氩弧焊
燃油總管%支架%預製定位孔闆%氬弧銲
연유총관%지가%예제정위공판%아호한
main fuel pipeline%support%prefabricated positioning plate%argon welder
燃油总管上有七个支架沿圆周均布，每个支架上有一个Ф8mm的通孔。装配时，以七个支架孔为基准将燃油总管固定在燃烧室机匣的支撑座上。在故检时发现，个别支架孔孔径超差。为了解决燃油总管支架孔超差问题，将支架端面材料去除，把预制的GH708材料的定位板通过定位夹具将其焊接在支架上，用真空热处理消除焊接应力。采用该方法修复的燃油总管已经达到设计要求，满足了生产急需，提高了燃油总管深度修理的可靠性。
燃油總管上有七箇支架沿圓週均佈，每箇支架上有一箇Ф8mm的通孔。裝配時，以七箇支架孔為基準將燃油總管固定在燃燒室機匣的支撐座上。在故檢時髮現，箇彆支架孔孔徑超差。為瞭解決燃油總管支架孔超差問題，將支架耑麵材料去除，把預製的GH708材料的定位闆通過定位夾具將其銲接在支架上，用真空熱處理消除銲接應力。採用該方法脩複的燃油總管已經達到設計要求，滿足瞭生產急需，提高瞭燃油總管深度脩理的可靠性。
연유총관상유칠개지가연원주균포，매개지가상유일개Ф8mm적통공。장배시，이칠개지가공위기준장연유총관고정재연소실궤갑적지탱좌상。재고검시발현，개별지가공공경초차。위료해결연유총관지가공초차문제，장지가단면재료거제，파예제적GH708재료적정위판통과정위협구장기한접재지가상，용진공열처리소제한접응력。채용해방법수복적연유총관이경체도설계요구，만족료생산급수，제고료연유총관심도수리적가고성。
There are seven supports uniformly distributed along the circumference of the main fuel pipeline. And a Ф8mm hole is set on each of the supports. During assembling, fixed the main fuel pipeline on the foundation of combustor cartridge receiver on the basis of the hole set on the supports. But some hole size was overproof when checking. In order to solve the problem, remove the materials on the face of supports, weld the prefabricated GH708 positioning plate on the support with the positioning fixture, and eliminate the welding stress through the vacuum thermal treatment. By adopting this new technology can content to the design requirements and the production requirements, and improve the reliability of deep repairing of the main fuel pipeline.
