Nkenke Oyi Dịrị Tube
Ngwa ndị isi: Ụgbọ ala, ọgba tum tum, akụrụngwa refrigeration, akụkụ hydraulic, bearings, pneumatic cylinders, na ndị ahịa ndị ọzọ nwere nnukwu ihe achọrọ maka izi ezi ọkpọ ígwè, ịdị nro, ịdị ọcha, na akụrụngwa.
1, Akụkụ bụ isi nke ọkpọkọ igwe anaghị agba nchara bụ na ọ nweghị welded onuete ma nwee ike iguzogide nrụgide ka ukwuu.Ngwaahịa ahụ nwere ike ịdị oke ike dị ka nkedo ma ọ bụ akụkụ oyi adọtara.
2, The nkenke oyi adọta ọkpọkọ bụ tumadi n'ime oghere, na n'elu mgbidi size nwere siri ndidi na roughness, na nkenke bụ nnọọ elu.
A na-egosipụta ọkụ nhịkọ oyi (ma ọ bụ ọnọdụ nhịkọ dị ala) nke ọkpọkọ nchara na-egbuke egbuke nke oyi na-apụta site na mgbanwe okpomọkụ nke siri ike-brittleness Tc.Ígwè dị ọcha dị elu (0.01% C) nwere Tc nke 100C, ọ na-agbajikwa ya kpamkpam n'okpuru okpomọkụ a.Ọtụtụ n'ime ihe alloying na oyi na-atụ akpọrepu nkenke nchara na-egbuke egbuke na-ebuli okpomọkụ mgbanwe siri ike-na-emebi emebi nke ọkpọkọ ígwè na-egbuke egbuke na-egbuke egbuke ma na-amụba ọchịchọ nke brittleness oyi.Mgbe mgbaji ductile dị n'elu ụlọ okpomọkụ, mgbaji nke oyi na-agbaji nkenke nchara nchara na-egbuke egbuke bụ ihe mgbagwoju anya, na mgbe ọ na-agbaji agbaji na obere okpomọkụ, ọ bụ nkwụsịtụ.
Ihe kpatara embrittlement dị ala okpomọkụ nke oyi-akpọrepu nkenkenke nchara na-egbuke egbuke bụ:
(1) Mgbe dislocations eme site na dislocation isi iyi n'oge deformation na-egbochi site ihe mgbochi (dị ka ọka ókè, nke abụọ hà), na mpaghara nchegbu karịa theoretical ike nke oyi-akpọrepu nkenkenke nchara na-egbuke egbuke ọkpọkọ na-akpata microcracks.
(2) Ọtụtụ mgbakasị n'ike na-etolite microcrack na oke ọka.
(3) Mmeghachi omume n'ebe nrute nke abụọ {110) slift bands na-akpata mkpasu iwe %26lt;010%26gt;, nke bụ microcrack yiri wedge, nke nwere ike kewaa n'akụkụ {100} cleavage ụgbọelu (lee foto 1b).
Ihe ndị na-eme ka nchara oyi nke ọkpọkọ nchara na-egbuke egbuke bụ:
(1) Ihe na-eme ka ihe ngwọta siri ike.Phosphorus na-abawanye okpomọkụ mgbanwe siri ike-na-esi ike;e nwekwara molybdenum, titanium na vanadium;mgbe ọdịnaya dị ala, ọ na-enwe mmetụta dị nta, ma mgbe ọdịnaya dị elu, ihe ndị na-eme ka okpomọkụ mgbanwe siri ike na-esi ike bụ silicon, chromium na ọla kọpa;belata ihe isi ike-nkụkọ okpomọkụ ntụgharị bụ nickel, na ntughari okpomọkụ siri ike bụ manganese.
(2) Ihe ndị na-eme akụkụ nke abụọ.Ihe kachasị mkpa maka nbibi oyi nke ọkpọkọ nchara na-egbuke egbuke na nke abụọ bụ carbon.Site na mmụba nke ọdịnaya carbon na ọkpọkọ nchara na-egbuke egbuke nke oyi na-atụ, ọdịnaya nke pearlite na nchara nchara na-egbuke egbuke na-abawanye, na-abawanye nkezi 1% nke olu pearlite.Okpomọkụ mgbanwe siri ike na-esighi ike mụbara site na 2.2 Celsius na nkezi.Onyonyo 2 na-egosi mmetụta nke ọdịnaya carbon dị na ferrite-pearlite nchara na nhịkọ.Mgbakwunye nke ihe microalloying dị ka titanium, niobium na vanadium ga-etolite nitrides ma ọ bụ carbonitrides agbasasị agbasa, na-eme ka okpomọkụ mgbanwe siri ike-na-emebi emebi nke ọkpọkọ nchara na-egbuke egbuke na-ebili.
(3) Ogo ọka na-emetụta okpomọkụ mgbanwe siri ike-na-emebi emebi.Ka ọka ndị ahụ na-agbaze, okpomọkụ mgbanwe siri ike na-esighi ike na-abawanye.Ịnụcha ọka ndị ahụ na-ebelata ịdị nro nke oyi na-ekpo ọkụ nke ọkpọkọ ígwè na-egbuke egbuke nke oyi na-atụ, bụ nke a na-ejikarị eme ihe.
