Mavuto ndi Mayankho Okhudzana ndi Njira Yowotcherera Pa Mbale Wokhuthala ndi Woonda

1. Kodi chitani ngati makulidwe a workpiece zitsulo kuposa kuwotcherera pazipita panopa makina kuwotcherera akhoza kukwaniritsa pogwiritsa ntchito mpweya zitsulo arc kuwotcherera (GMAW) ndi flux cored waya mpweya arc kuwotcherera (FCAW) kuti kuwotcherera zitsulo workpieces?

Njira yothetsera vutoli ndikutenthetsa chitsulo chisanayambe kuwotcherera. Preheat ndi kuwotcherera m'dera workpiece ntchito propane, muyezo mpweya kapena acetylene kuwotcherera tochi, ndi kutentha preheating 150-260 ℃, ndiyeno chitani kuwotcherera. Cholinga cha preheated zitsulo m'dera kuwotcherera ndi kuteteza weld dera kuzirala mofulumira kwambiri, kuti asapangitse ming'alu kapena kusakwanira maphatikizidwe mu weld.

2. Ngati kuli kofunika kugwiritsa ntchito kusungunula ma elekitirodi mpweya wotetezedwa kuwotcherera kapena flux cored waya mpweya wotetezedwa kuwotcherera kuti kuwotcherera woonda chitsulo chivundikiro pa thicker zitsulo chitoliro, ngati kuwotcherera panopa sangathe kusintha molondola pa kuwotcherera, zingachititse zinthu ziwiri:

Chimodzi ndi kuchepetsa kuwotcherera panopa kuti zitsulo zopyapyala zisawotchedwe, ndipo panthawiyi, chivundikiro chachitsulo chopyapyala sichingawotchedwe ndi chitoliro chachitsulo chokhuthala; Kachiwiri, kuwotcherera kwambiri kumatha kupsa ndi zisoti zachitsulo zopyapyala. Kodi izi ziyenera kuchitidwa bwanji?

Pali njira ziwiri:

① Sinthani mawotchi apano kuti musawotchere pachivundikiro chachitsulo chopyapyala, tenthetsani chitoliro chachitsulo chokhuthala ndi nyali yowotcherera, kenako gwiritsani ntchito ukadaulo wowotcherera mbale zopyapyala kuwotcherera zitsulo ziwirizo.

② Sinthani mawotchi apano kuti akhale oyenera kuwotcherera mapaipi achitsulo. Pamene kuwotcherera, sungani nthawi yokhalamo ya arc yowotcherera pa chitoliro chachitsulo chakuda pa 90% ndikuchepetsa nthawi yokhala pachivundikiro chachitsulo chopyapyala. Ziyenera kunenedwa kuti pokhapokha atadziwa bwino njira iyi pomwe zolumikizira zabwino zowotcherera zitha kupezeka.

3. Mukawotchera chitoliro chozungulira chozungulira chozungulira kapena chamakona anayi kupita ku mbale yokhuthala, ndodo yowotcherera imakonda kuyaka kupyola gawo la chitoliro chopyapyala. Kupatula njira ziwiri zomwe zili pamwambazi, pali njira zinanso?

Inde, makamaka pogwiritsa ntchito ndodo yochotsera kutentha panthawi yowotcherera. Ngati ndodo yozungulira yolimba ikalowetsedwa mu chubu chozungulira chozungulira chokhala ndi mipanda yopyapyala, kapena ndodo yolimba ya makona anayi ikalowetsedwa mu chitoliro cha makona anayi, ndodo yolimbayo imachotsa kutentha kwa chogwiriracho chokhala ndi mipanda yopyapyala ndikuletsa kuwotcha. Nthawi zambiri, ndodo zolimba zozungulira kapena zamakona anayi zimayikidwa molimba muzinthu zambiri zomwe zimaperekedwa zopanda pake kapena zamakona. Pamene kuwotcherera, chidwi chiyenera kulipidwa kuti kuwotcherera kutali ndi kumapeto kwa chitoliro, komwe ndi malo osatetezeka kwambiri kuti awotchedwe. Chithunzi chojambula chogwiritsira ntchito sinki yotenthetsera kuti musawotche ikuwonetsedwa pa Chithunzi 1.

4. Kodi zopangira malata kapena chromium ziyenera kuwotcherera bwanji mbali ina?

Njira yabwino kwambiri ndiyo kufaya kapena kupukuta malo ozungulira chowotcherera asanayambe kuwotcherera, monga malata kapena chromium okhala ndi zitsulo zomwe sizimangoyipitsa ndikuchepetsa kuwotcherera, komanso kutulutsa mpweya wapoizoni panthawi yowotcherera.