Ngbanwe ụlọ nke titanium alloy rod n'oge extrusion na-ekpo ọkụ

Ngwongwo nke titanium, nke a maara dị ka ihe eji arụ ọrụ, nwere njikọ chiri anya na ịdị ọcha. Igwe dị ọcha nke titanium nwere ezigbo arụmọrụ, ezigbo elongation na shrinkage, mana obere ike na adabaghị maka ihe eji arụ ọrụ. Industrial ọcha titanium nwere kwesịrị ekwesị adịghị, nwere elu ike na plasticity, na adabara na-eme ka bughi ihe. Igwe mmiri na-ekpo ọkụ nke titanium na titanium alloy blanks dị ala, nke ga-eme ka nnukwu ihe dị iche iche dị n'etiti oyi akwa na akwa dị n'ime n'oge extrusion na-ekpo ọkụ. Mgbe okpomọkụ nke gbọmgbọm extrusion dị ogo 400, ọdịiche ọnọdụ okpomọkụ nwere ike iru 200 ~ 250 degrees. N'okpuru mmetụta jikọtara nke mmịpụta mmiri na nnukwu mgbanwe dị iche iche nke ngalaba oghere, ọla dị n'elu na etiti oghere na-emepụta ike dị iche iche na akụrụngwa plastik, nke ga-eme ka nrụrụ na-enweghị atụ n'oge usoro extrusion. Ọ na - emepụta nrụgide nrụgide dị ukwuu karị, nke na - aghọ isi iyi nke mgbape na mgbawa n'elu ngwaahịa ndị nwere ngwaahịa Usoro extrusion na-ekpo ọkụ nke titanium na titanium alloy ngwaahịa dị mgbagwoju anya karịa nke aluminom alloy, ọla kọpa alloy, na ọbụna ígwè, nke kpebisiri ike site na ihe pụrụ iche nke anụ ahụ na nke kemịkal nke titanium na titanium alloy.

Ruo ugbu a, a ga-eji lubricants mee ihe na usoro extrusion nke titanium. Isi ihe kpatara ya bụ na titanium ga-etolite fusible eutectic na ígwè ma ọ bụ nickel dabere alloy ebu ihe na okpomọkụ nke 980 degrees na 1030 degrees, si otú na-eme ka ebu ahụ gwụ ike. Mgbe ị na-eji mmanu graphite eme ihe, enwere ike ịmịpụta ọkọlọtọ ogologo oge n'elu ngwaahịa a, nke bụ nsonaazụ nke ọrụ nke igwe-titanium mkpanaka na titanium alloy mkpara na-arapara na ebu. Mgbe ị na-ewepụ profaịlụ na mmanụ a glassụ na iko, ọ ga - eduga n'ụdị ntụpọ ọhụụ "olulu", ya bụ, mgbape na akwa oyi akwa nke ngwaahịa a. Nnyocha egosiwo na ọdịdị nke "ihe nrịbama" bụ n'ihi nrụrụ ọkụ dị ala nke titanium na titanium alloys, nke na-eme ka akwa akwa nke billet ahụ dị jụụ na plastik na-ada ngwa ngwa.

A na-ekewapụta ihe ndị dị na Titan dị ka nnukwu ike dị elu, ike ọkara na ike dị elu, ma site na 200 (obere ike) ruo 1300 (dị elu) MPa, mana n'ozuzu titanium alloys nwere ike iwere dị ka alloys dị elu. . Ha dị ike karịa aluminom alloys, nke a na-ewere dị ka ọkara-ike, ma nwee ike dochie ụfọdụ ụdị ígwè dị ike. E jiri ya tụnyere nkwụsị ngwa ngwa nke ike nke alloys na okpomọkụ karịa 150 Celsius C, ụfọdụ alloys titanium ka nwere ike ịnọgide na-enwe ezigbo ike na 600 Celsius C. Ngwunye titanium a bara uru nke ukwuu site na ụlọ ọrụ ụgbọelu n'ihi ịdị arọ ya na ike dị elu karịa aluminom alloys, nke nwere ike ijigide ike dị elu karịa aluminom na nnukwu okpomọkụ. Nyere na njupụta nke titanium bụ 57% nke nchara, ike ya kpọmkwem (ike / ịdị arọ ma ọ bụ ike / njupụta a na-akpọ ike a kapịrị ọnụ) dị elu, na nguzogide corrosion, nkwụsị oxidation, na nkwụsị ike ọgwụgwụ siri ike. 3/4 nke titanium alloy na-eji dị ka Structural ihe na-anọchi anya ụgbọelu bughi alloys na-bụ-eji dị ka corrosion na-eguzogide alloys. Ngwunye Titanium nwere ike dị elu na njupụta dị ala, ezigbo ihe eji arụ ọrụ, ezigbo ike na nguzogide corrosion. Na mgbakwunye, alloys titanium nwere arụmọrụ usoro adịghị mma ma sie ike ịkpụ. Na arụ ọrụ na-ekpo ọkụ, ọ dị mfe ịnweta adịghị ọcha dị ka hydrogen, oxynitride na carbon. Enweghi nguzogide abrasion na usoro mmeputa siri ike. Mmepụta nke titanium malitere na 1948. Mkpa maka mmepe nke ụlọ ọrụ ụgbọelu enyela ụlọ ọrụ titanium aka na-eto eto na nkezi uto nke afọ ọ bụla banyere 8%. Ka ọ dị ugbu a, mmepụta nke titanium alloy na-emepụta kwa afọ eruola ihe karịrị tọn 40,000 'ihe fọrọ nke nta ka ọ bụrụ ụdị 30 ụdị titanium alloy. Ngwakọta titanium a na-ejikarị bụ Ti-6Al-4V (TC4) 'Ti-5Al-2.5Sn (TA7) na ụlọ ọrụ titanium (TA1, TA2 na TA3).

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