O'rta chastotali nuqta payvandchining qarshiligining nuqta payvandlash isitishiga ta'siri

ning qarshiligispotli payvandlash mashinasiichki issiqlik manbai, qarshilik issiqligining asosi bo'lib, payvandlash harorati maydonini shakllantirishning ichki omilidir, tadqiqotlar shuni ko'rsatadiki, kontakt qarshiligining issiqlik chiqarilishi (o'rtacha) ichki issiqlik manbai Q ning taxminan 5% -10% ni tashkil qiladi, yumshoq spetsifikatsiya bo'lishi mumkin. bu qiymatdan kamroq bo'lishi, qattiq spetsifikatsiya va nozik nuqta payvandlash bu qiymatdan kattaroqdir, kontakt qarshiligi R, Bu o'tkazgichning haqiqiy jismoniy aloqa nuqtalarini taqsimlash va aloqa nuqtalarining maydoni bilan bog'liq.

Ya'ni, bu payvandlash materiali, sirt holati (tozalash usuli, sirt pürüzlülüğü, saqlash muddati), elektrod bosimi va harorati bilan bog'liq, ba'zan esa yopishqoqlik shikastlanishi, dastlabki chayqalish va boshqa yomon hodisalarning oldini olish uchun egar shaklidagi bosim o'zgarishi. egri qalin po'lat plitalar, alyuminiy qotishmalari va boshqalarni spotli payvandlashda, past va bir xil aloqa qarshilik qiymatini olish uchun ishlatilishi mumkin, bu nafaqat elektr energiyasidan to'liq foydalanishi, balki elektr energiyasidan to'liq foydalanishi mumkin. Payvandlash sifati ham yaxshilanishi mumkin. Elektrni tejashning ikki tomonlama ta'siri.

Qalin po'lat plitani spotli payvandlashda, agar oldindan isitish oqimining zarbasi va amplituda modulyatsiya oqimi to'lqin shakli kabi spotli payvandlash davri ishlatilsa, egar shaklidagi bosim egri chizig'i bilan bir xil ta'sirga erishish mumkin va uskunaning narxini kamaytirish mumkin. chunki oldindan yuklangan elektrodning bosimini oshirish mumkin.

Shuni ta'kidlash kerakki, kontakt qarshiligining issiqlik assimilyatsiyasi issiqlik manbasining kichik qismini tashkil etsa-da va u kamayib, payvandlash boshlangandan so'ng tezda yo'qolsa ham, issiqlikning bu qismi dastlabki harorat maydonini o'rnatish uchun muhimdir. payvandlash bosqichi, aloqa maydonini kengaytiring va oqim taqsimotining homogenlashuviga yordam bering.

Suzhou Agera Automation Equipment Co., Ltd. is engaged in automatic assembly, welding, testing equipment and production line development enterprises, mainly used in home appliance hardware, automobile manufacturing, sheet metal, 3C electronics industry. According to customer needs, we can develop and customize various requirements of welding machines and automatic welding equipment and assembly welding production lines, production lines, etc., to provide suitable automated overall solutions for enterprise transformation and upgrading, and help enterprises quickly realize the transformation and upgrading services from traditional production methods to high-end production methods. If you are interested in our automation equipment and production lines, please contact us: leo@agerawelder.com