Kedu maka mmetụta ịgbado ọkụ nke oghere brazing ọkụ

Kedu maka mmetụta ịgbado ọkụ nke oghere brazing ọkụ

Ụzọ brazing n'ime ọkụ ọkụ bụ usoro brazing ọhụrụ dị ọhụrụ na-enweghị mgbanwe n'okpuru ọnọdụ oghere.N'ihi na brazing dị na ebe oghere, enwere ike ikpochapụ mmetụta ikuku na-arụ ọrụ nke ọma, yabụ enwere ike ịme brazing nke ọma na-enweghị itinye flux.A na-eji ya eme ihe nke ọma maka ọla brazing na alloys ndị siri ike ịgbaze, dị ka aluminom alloys, titanium alloys, elu okpomọkụ alloys, refractory alloys na ceramik.Njikọ brazed na-egbuke egbuke na kọmpat, na-enwe ezigbo ihe eji arụ ọrụ na nguzogide corrosion.A naghị ejikarị akụrụngwa brazing Vacuum maka ịgbado agịga nke carbon steel yana obere alloy steel.

Akụrụngwa brazing n'ime ọkụ na-ekpo ọkụ bụ nke sitere n'ọkụ brazing na-ekpo ọkụ na sistem ikuku.Enwere ụdị abụọ nke oghere brazing Furnace: Ebe a na-ekpo ọkụ na ebe ọkụ oyi.Ụdị ọkụ abụọ ahụ nwere ike ikpo ọkụ site na gas ma ọ bụ ọkụ eletrik, a pụkwara ịmepụta ya n'ime ọkụ ọkụ dị n'akụkụ, ala ọkụ ọkụ ma ọ bụ n'elu ọkụ ọkụ (ụdị Kang).Enwere ike iji usoro agụụ ahụ n'ozuzu ya.

Agụụ usoro tumadi na-agụnye agụụ unit, agụụ pipeline, agụụ valvụ, wdg Vacuum unit na-emekarị mejupụtara rotary vane n'ibu mgbapụta na mmanụ mgbasa mgbapụta.Igwe mgbapụta igwe naanị nwere ike nweta ihe na-erughị ogo 1.35 × Vacuum nke ọkwa 10-1pa.Iji nweta oghere dị elu, a ghaghị iji mgbapụta mgbapụta mmanụ mee ihe n'otu oge ahụ.N'oge a, ọ nwere ike iru 1.35 × Vacuum ogo nke 10-4Pa larịị.A na-atụle nrụgide gas dị na usoro ahụ site na nlele oghere.

Ịgba ọkụ n'ọkụ na-ekpo ọkụ bụ ịgbanye ọkụ n'ime ọkụ ma ọ bụ ụlọ brazing nke ikuku ewepụtara.Ọ dabara nke ọma maka brazing nnukwu na nkwonkwo na-aga n'ihu, ọ dịkwa mma maka ijikọ ụfọdụ ọla pụrụ iche, gụnyere titanium, zirconium, niobium, molybdenum na tantalum.Ọ nwere ọtụtụ ngwa ngwa.Agbanyeghị, vacuum brazing nwekwara ọghọm ndị a:

① The metal dị mfe volatilize n'okpuru agụụ, n'ihi ya, ọ bụghị adabara iji agụụ brazing maka isi metal na filler metal nke agbanwe agbanwe.Ọ bụrụ na ọ dị mkpa iji, a ga-anabata usoro usoro mgbagwoju anya kwekọrọ.

② Vacuum brazing na-enwe mmetụta maka ịdị nro nke elu, ịdị mma mgbakọ na nnabata nke akụkụ brazed, ma na-achọ ọkwa dị elu nke gburugburu ebe ọrụ na ndị na-arụ ọrụ.

③ Ngwá ọrụ oghere dị mgbagwoju anya, yana nnukwu ntinye ego otu oge yana ụgwọ ọrụ dị elu.

Yabụ, kedu ka esi etinye usoro brazing na ọkụ ọkụ?Mgbe a na-eme brazing n'ime ọkụ na-ekpo ọkụ, a ga-ebufe welded n'ime ọkụ (ma ọ bụ n'ime arịa brazing), a ga-emechi ọnụ ụzọ ọkụ ahụ (ma ọ bụ mkpuchi ụgbọ mmiri brazing ga-emechi), ma kpochaa tupu ya eruo. kpo oku.Malite na igwe mgbapụta mbụ, gbanye valvụ steering mgbe ogo agụụ ahụ ruru 1.35pa, mechie ụzọ kpọmkwem n'etiti mgbapụta igwe na ọkụ brazing, mee ka pipeline jikọọ ya na ọkụ brazing site na mgbapụta mgbasa, dabere na mgbapụta igwe na Mgbasa mgbasa ozi na-arụ ọrụ n'ime obere oge, gbanye ọkụ brazing na ogo agụụ achọrọ, wee malite ike na kpo oku.

N'oge dum usoro nke okpomọkụ ịrị elu na kpo oku, na agụụ unit ga-anọgide na-arụ ọrụ iji nọgide na-enwe agụụ n'ime ọkụ, mebie ikuku ntapu na dị iche iche interfaces nke agụụ usoro na brazing ọkụ, ntọhapụ nke gas na uzuoku adsorbed na. mgbidi ọkụ, ihe nrụnye na welding, volatilization nke metal na oxide, wdg, iji belata ezi ikuku.E nwere ụdị abụọ nke oghere brazing: elu oghere brazing na akụkụ oghere (ọkara oghere) brazing.Akwa brazing dị elu dabara adaba maka brazing metal base nke oxide siri ike ire ere (dị ka nickel base superalloy).A na-eji brazing obere oghere maka oge mgbe metal ntọala ma ọ bụ ihe ndochi na-agbanwe n'okpuru ọnọdụ brazing na ọnọdụ oghere dị elu.

Mgbe a ga-akpachapụ anya pụrụ iche iji hụ na ịdị ọcha dị elu, a ga-anakwere usoro ịsacha oghere tupu ikpo ọkụ hydrogen akọrọ.N'otu aka ahụ, iji hydrogen kpọrọ nkụ ma ọ bụ usoro ịsachapụ gas na-adịghị ahụkebe tupu ikpochapụ ahụ ga-enyere aka nweta nsonaazụ ka mma na nnukwu oghere brazing.