Kev Ua Haujlwm Ntawm Kev Kho Mob Tom Qab Weld Thaum Tshav Kub Kub Thiab Kev Tiv Thaiv Kev Tsim Kho Rau Steel Structure Bolts

Thaum lub sij hawm vuam ntawmsteel qauv bolts, tsis sib npaug cua sov thiab cua txias, ua ke nrog cov txheej txheem sab hauv thiab kev txwv kev sib dhos sab nraud, yuav ua rau muaj kev ntxhov siab nyob hauv cov khoom tom qab vuam. Residual welding kev nyuaj siab txo cov kabmob muaj peev xwm ntawm cov pob qij txha thiab ua rau cov yas deformation. Kev ntxhov siab ntau dhau tuaj yeem ua rau cov khoom siv deformation, tawg thiab txawm tias cov qauv kev puas tsuaj, cuam tshuam rau kev nyab xeeb thiab ruaj khov ntawm cov qauv steel.

1. Kev ua haujlwm ntawm Kev Kho Mob Tom Qab Kev Kho Hniav Hydrogen Tshem Tawm

Tom qab vuam hydrogen tshem tawm yog txheej txheem kev kho cua sov uas tsis tshua muaj kub, uas yuav tsum tau ua ua ntej qhov kub ntawm qhov vuam txias qis dua 100 degree. Cov txheej txheem txheej txheem tsis yog cua sov ntawm 200℃txog 350℃thiab tuav lub sijhawm ntawm 2 mus rau 6 teev. Cov txheej txheem no ua kom nrawm nrawm ntawm kev khiav tawm ntawm cov dej dawb los ntawm qhov chaw vuam thiab cov cua sov, tiv thaiv cov kab nrib pleb thiab ncua cov kab nrib pleb hauv cov hlau tsis tshua muaj hlau welds thiab zoo heev txhim kho kev ruaj ntseg ntawm cov pob qij txha.

2. Kev ua haujlwm ntawm kev kho mob tom qab Weld Stress Relief Heat Treatment

Kev ntxhov siab kev kho cua sov yuav txo tau lub zog ntawm cov hlau ntawm qhov kub thiab txias kom tso tawm thiab homogenize residual vuam kev ntxhov siab, ua haujlwm tseem ceeb tom qab vuam txheej txheem rau steel qauv fabrication. Nws feem ntau suav nrog ob txoj hauv kev: tag nrho cov kub-kub tempering thiab hauv zos high-temperature tempering.

Zuag qhia tag nrho high-temperature tempering: Tag nrho cov welded tivthaiv yog muab tso rau hauv ib lub qhov cub cua sov, rhuab maj mam mus rau qhov ntsuas kub, tuav ntawm qhov kub thiab txias, thiab ces txias nyob rau hauv lub cub tawg los yog nyob rau hauv ambient cua. Txoj kev no tuaj yeem tshem tawm 80% mus rau 90% ntawm qhov seem welding kev ntxhov siab, ua tiav cov txiaj ntsig zoo rau kev ntxhov siab.

Kev kub siab hauv cheeb tsam: Tsuas yog cov vuam seam thiab cov cheeb tsam uas nyob ib sab uas muaj cua sov uas nyob ib sab yog cov cua sov hauv zos thiab tom qab ntawd maj mam txias. Nws txo cov kev ntxhov siab hauv zos peaks thiab sib npaug sib npaug ntawm kev ntxhov siab, ua kom muaj kev ntxhov siab ib nrab. Txoj kev no yog tsim rau cov hlau loj loj uas tsis tuaj yeem muab tso rau hauv qhov cub cua sov.

3. Kev txhim kho ntawm Welded Joint Performance los ntawm kev kho cua sov

Tom qab vuam ntawm qee cov hlau hlau, cov khoom siv tawv tawv tau yooj yim tsim nyob rau hauv welds thiab tshav kub-tshem cov cheeb tsam, uas ua rau txo cov plasticity, toughness thiab degraded mechanical zog ntawm cov pob qij txha. Tsis tas li ntawd, kev sib xyaw ua ke ntawm cov kev ntxhov siab seem thiab hydrogen embrittlement tuaj yeem ua rau muaj kev puas tsuaj loj rau cov pob qij txha welded. Standardized post-weld heat treatment optimizes metallographic structure and refines the grain of welds, significantly improves the plasticity, toughness and comprehensive mechanical properties of welded joints, thiab xyuas kom meej qhov kev sib txuas lub zog thiab kev pab cuam ntev ntev ntawm steel qauv.

4. Kev faib tawm ntawm High-Strength Steel Structure Bolts

High-strength steel qauv bolts Feem ntau muab faib ua ob pawg: loj hexagon high-strength bolts thiab shear-twist high-strength bolts. Loj hexagon high-strength bolts yog cov pa high-strength threaded fasteners. Shear-twist high-strength bolts yog optimized thiab txhim kho raws li loj hexagon bolts, featuring zoo kev tsim kho adaptability, raug preload tswj thiab minimized phau ntawv siv yuam kev.

5. Kev tsim kho Specifications thiab ceev faj rau steel qauv Bolts

Kev nruj ntawm lub zog siab steel qauv bolts yuav tsum ua raws li tus txheej txheem ob-kauj ruam ntawm kev zawm ua ntej thiab qhov kawg nruj. Ib-kauj ruam puv nruj yog txwv tsis pub. Kev nruj ua ntej tuaj yeem ua tiav nrog kev cuam tshuam hluav taws xob wrenches lossis adjustable torque electric wrenches kom tshem tawm qhov sib txawv ntawm cov phaj sib txuas thiab sib faib ua ntej.

Cov cuab yeej tshwj xeeb yuav tsum tau muab coj los siv rau qhov kawg nruj raws li hom ntsia liaj qhov rooj: shear-twist high-strength bolts yuav tsum tau nruj nrog rau siab shear-twist fais wrenches, nrog tus Tsov tus tw tawg raws li tus qauv tsim nyog nruj; loj hexagon high-strength bolts yuav tsum tau ua tiav nrog torque fais wrenches nyob rau hauv nruj raws li tus tsim torque tus nqi.

Nyob rau hauv cov nqe lus ntawm structural muaj pes tsawg leeg: ib tug ua tiav txheej lojhexagon high-strength ntsia liaj qhov rooj kev sib dhos muaj ib lub ntsia liaj qhov rooj, ib lub txiv ntoo thiab ob lub tshuab ntxhua khaub ncaws; shear-twist high-strength bolt sib dhos muaj xws li ib lub bolts, ib tug txiv ntseej thiab ib lub tshuab ntxhua khaub ncaws. Thawj txuam accessories yuav tsum tau siv thaum lub sij hawm installation, thiab sib xyaw ua ke ntawm cov khoom siv sib txawv yog txwv tsis pub.