Otu esi ahọrọ ihe nnwale siri ike maka ịnwale ihe nlele ụdị tubular

1) Enwere ike iji ihe nnwale ike Rockwell nwalee ike nke mgbidi paịpụ ígwè?

Ihe nnwale ahụ bụ paịpụ ígwè SA-213M T22 nke nwere dayameta mpụta nke 16mm na ọkpụrụkpụ mgbidi nke 1.65mm. Nsonaazụ nnwale nke ihe nnwale ike Rockwell bụ ndị a: Mgbe ewepụsịrị oxide na oyi akwa decarburized n'elu ihe nlele ahụ site na iji ihe igwe nri, etinyere ihe nlele ahụ na tebụl ọrụ dị ka V ma mee nnwale ike Rockwell ozugbo na elu mpụta ya, site na iji ihe ngosi dijitalụ HRS-150S ihe nnwale ike Rockwell na ibu :980.7N.

Mgbe ule ahụ gasịrị, a pụrụ ịhụ na paịpụ ígwè dị n'elu mgbidi ahụ nwere obere mgbanwe, ihe si na ya pụta bụ: obere uru a tụrụ nke ike Rockwell na-eme ka ule ahụ ghara ịdị irè.

Dịka GB/T 230.1-2018 si kwuo « Nnwale ike Rockwell maka ihe ọla Nkebi nke 1: Usoro nnwale », ike Rockwell bụ 80HRBW na oke kacha nta nke ihe nlele ahụ bụ 1.5mm. Oke ọkpụrụkpụ nke ihe nlele Nke 1 bụ 1.65mm, ọkpụrụkpụ nke oyi akwa decarburized bụ 0.15~0.20mm, ọkpụrụkpụ nke ihe nlele ahụ mgbe ewepụchara oyi akwa decarburized bụ 1.4~1.45mm, nke dị nso na oke kacha nta nke ihe nlele ahụ akọwapụtara na GB/T 230.1-2018.

N'oge ule ahụ, n'ihi na a naghị akwado ebe nlele ahụ, ọ ga-eme ka ọ ghara ịdị mfe (nke anya na-anaghị ahụ anya), yabụ uru a tụrụ na Rockwell siri ike dị obere.

2) Otu esi ahọrọ eluRockwellihe nnwale siri ike maka ịnwale ọkpọkọ ígwè:

Ụlọ ọrụ anyị anwalela ike nke elu paịpụ ígwè ahụ ugboro ugboro ma ruo na nkwubi okwu ndị a:

Nnwale siri ike Rockwell dị elu ma ọ bụ nnwale siri ike Rockwell n'elu paịpụ ígwè dị gịrịgịrị. Enweghị nkwado mgbidi zuru oke ga-akpata mgbanwe ihe atụ ma mee ka nsonaazụ nnwale dị ala;

Ọ bụrụ na etinye nkwado cylindrical n'etiti tube ígwè dị gịrịgịrị, n'ihi na ọ gaghị enwe ike ijide n'aka na axis indenter na ntụziaka ibu ibu na elu nke paịpụ ígwè kwụ ọtọ na elu, na elu mpụta nke paịpụ ígwè na ebe ahụ ga-eme ka oghere nke nkwado cylindrical nke oghere dị n'etiti elu okirikiri nke paịpụ ígwè na elu nkwado cylindrical, ga-emekwa ka nsonaazụ ule ahụ dị obere.

Gbanwee ule siri ike nke Vickers ka ọ bụrụ ule siri ike nke Rockwell mgbe ị kpụchara ihe nlele ọkpọkọ ígwè ahụ, ọ ga-enweta uru siri ike nke Rockwell nke ziri ezi.

2. Mgbe ewepụchara oyi akwa oxide na decarburization n'elu paịpụ ígwè ahụ ma jiri usoro nnwale ahụ mee ihe n'elu mpụta ma tinye ya n'ime ya, Value ziri ezi karịa ma e jiri ya tụnyere ihe nnwale ike Superficial Rockwell na ihe nnwale ike Rockwell.