Ngwọta ọkụ ngwa ngwa, na mgbakwunye na nyocha na njikwa n'ozuzu, enwere ụfọdụ nyocha na njikwa mma pụrụ iche, ugbu a, anyị na-ekwu ọgwụgwọ okpomọkụ nke ọtụtụ isi ihe nchịkwa.
01 Decarburization na carburization
Iji chọpụta njikwa carbon ọkụ n'oge, ị nwere ike iji nchọpụta ọkụ na Rockwell hardness test maka decarburization na carburization maka ikpe mbido.
Nnwale ọkụ.
Bụ quenched akụkụ, na grinder si n'elu na n'ime nwayọọ egweri ebuka ikpe elu na obi nke carbon ego bụ agbanwe agbanwe. Mana nke a chọrọ ka onye ọrụ nwee usoro nka na ọkụ ọkụ iji mata ike.
Nnwale ike ike Rockwell.
A na-eme ya n'akụkụ bolt hexagonal. Nke mbụ, akụkụ ndị siri ike nke ụgbọ elu hexagonal nwere akwụkwọ aja ejiri nwayọ na-egbu maramara, tụrụ ike nke Rockwell nke mbụ. Mgbe ahụ, elu a na sander ka gwerie ihe dịka 0.5mm, wee tụọ ike Rockwell.
Ọ bụrụ na ekweghị ekwe uru nke ugboro abụọ bụ ihu ọma otu, na ọ bụghị decarburization, ma ọ bụ carburization.
Mgbe ike nke mbụ dị ala karịa nke ikpeazụ, ọ pụtara na a na-ewepụ elu ya.
The mbụ hardness dị elu karịa nke ikpeazụ ekweghị ekwe, na elu carburization.
N'ozuzu, ihe dị iche iche siri ike nke 5HRC ma ọ bụ obere, na usoro metallographic ma ọ bụ usoro microhardness, akụkụ nke decarburization ma ọ bụ carburization bụ isi n'ime oke nke iru eru.
02 Ike na ike
Na threaded fastener ule, enweghị ike nanị dabere na ike ike uru nke mkpa akwụkwọ ntuziaka, converted n'ime ike uru. Enwere ihe na-eme ka ike sie ike n'etiti.
N'ozuzu, ike siri ike nke ihe dị mma, ike nke obe nke akụkụ nke ịghasa nwere ike kesaa n'otu n'otu, ọ bụrụhaala na ike siri ike ruru eru, ike ma hụ na nrụgide ahụ nwekwara ike izute ihe ndị a chọrọ;
Mgbe ike siri ike nke ihe ahụ adịghị mma, ọ bụ ezie na dịka akụkụ nke ndenye ego ahụ si dị, ike siri ike ruru eru, mana ike na nrụgide na-ekwe nkwa anaghị emezu ihe ndị a chọrọ. Karịsịa mgbe isi ike elu na-eche na njedebe dị ala, iji chịkwaa ike ma kwe nkwa nrụgide na oke ruru eru, na-emekarị ka uru njedebe dị ala nke ike siri ike dịkwuo mma.
03 Nnwale mmeghachi omume
Retempering ule nwere ike ịlele quenching ike ezughị, na oke ala okpomọkụ tempering sonso iru kpọmkwem ike ọgwụgwụ nso nke na-ezighị ezi ọrụ, iji hụ na keukwu n'ibu Njirimara nke akụkụ.
Karịsịa ala carbon martensitic ígwè n'ichepụta threaded fasteners, ala okpomọkụ tempering, ọ bụ ezie na ndị ọzọ n'ibu Njirimara nwere ike izute chọrọ, ma nha nke na-ekwe nkwa nrụgide, ihe fọdụrụ elongation fluctuation bụ nnọọ nnukwu, nnọọ ukwuu karịa 12.5um, na ụfọdụ ọnọdụ ojiji. ga-abụ ihe mgbaji na mberede, n'ụfọdụ ụgbọ ala na iwu nke bolts, apụtala n'ihe mgbaji na mberede.
Mgbe ndị kasị ala tempering okpomọkụ tempering, nwere ike ibelata n'elu onu, ma na ala carbon martensitic ígwè n'ichepụta 10.9 ọkwa bolts, kwesịrị ịkpachara anya karịsịa.
04 Nleba anya nke hydrogen ebrittlement
Nhụta nke mgbaka hydrogen na-abawanye site na ike nke ngwa ngwa. Mpụga threaded fasteners nke ọkwa 10.9 na n'elu, elu obi tara mmiri nke onwe-tapping kposara, Nchikota kposara na hardened ígwè washers, wdg kwesịrị dehydrogenated mgbe plating.
Ngwọta mmiri ozuzo na-adịkarị na oven ma ọ bụ ọkụ ọkụ, na-ejide na 190 ~ 230.℃maka ihe karịrị awa 4, nke mere na mgbasa ozi hydrogen pụta.
"ígwè ka chọrọ ike nke ya!" N'agbanyeghị otú ọnọdụ ahịa si agbanwe, imezi usoro mmepụta ihe bụkwa otu n'ime ụzọ dị irè isi guzogide ihe ize ndụ.
Na fastener okpomọkụ ọgwụgwọ usoro, ọ bụ ihe ịrụ ụka adịghị ya na ọ dị ezigbo mkpa ime ezigbo ọrụ na isi ihe njikwa, nke bụkwa otu n'ime ihe ndị ọ bụla ezi fastener okpomọkụ ọgwụgwọ enterprise kwesịrị ime nke ọma.
Oge nzipu: Jan-17-2024