这个是波音对材料控制的要求,哪位大侠上班时得空儿帮忙翻译一下,谢谢! The following materials shall be used in heat treat operations, as applicable: a. Heat treat salts conforming to MIL–S–10699 or equivalent material. (1) Neutral self-rectifying salts with a working range of 1350–1650 F; Houghton Liquid Heat No. 168, E. F. Houghton Co., or equivalent. (2) Neutral salts with a working range of 1550 to 1950 F; Houghton Liquid Heat No. 1450 or equivalent. (3) Neutral salts (for heat treating high speed tool steels); Houghton Liquid Heat No. 1550 or equivalent. (4) Tempering salts with a working range of 350 to 1000 F, Houghton Draw Temp 275 or equivalent. (5) Tempering salts with a working range of 1025 to 1400 F, Houghton Draw Temp 800 or equivalent, for use in the tempering or annealing operation. b. Quenching oils 淬火油 (1) Low viscosity high quenching speed oils, Houghton No. 2 Soluble Quenching Oil or equivalent. (2) Marquenching oil for interrupted quench in the range of 300 to 400 F; Houghton Mar-Temp Oil No. 2 or equivalent. c. Glycol quenchants (1) Houghton Aqua Quench 251 at a concentration of 10 to 20 volume percent in water for use in the 100 to 120 F range. (2) Ucon Quenchant A, Union Carbide Company, at a concentration of 16 to 20 volume percent in water for use in the range of 100 to 120 F. NOTE: Do not mix materials from different suppliers. |