Q1: Yuav ua li cas preheat rau vuam P91 (A335 P91) alloy kav?
A:Yam tsawg kawg yog 400℃F (204 degree) los tiv thaiv kev sib tsoo txias vim muaj zog hardenability.
Q2: Vim li cas tom qab -weld kev kho cua sov tsim nyog rau AISI 4340 tubing?
A:PWHT ntawm 1100-1200℃F txo qis kev ntxhov siab thiab rov ua kom tawv nqaij hauv HAZ.
Q3: Dab tsi muab cov hlau siv los txuas 2205 duplex rau API 5L X60?
A:ER309L lossis E2209 muab tub lim nrog kev tswj kom zoo kom muaj kev tiv thaiv corrosion.
Q4: Dab tsi yog dabtsi yog khoov vojvoog txwv rau DOM 1026 hydraulic tubing?
A:Qhov tsawg kawg nkaus khoov vojvoog=3 × OD rau nyias- cov phab ntsa phab ntsa kom tsis txhob muaj phab ntsa vau lossis wrinkling.
Q5: Dab tsi ua rau sensitization hauv 304H thaum vuam thiab nws txo qis li cas?
A:Chromium carbide nag lossis daus ntawm cov ciam teb; mitigated los ntawm kev siv 347 (Nb-stabilized).
