Ihe kacha mkpa na mmejuputa polishing
Gịnị mere anyị kwesịrị ịrụ n'elu nhazi na n'ibu akụkụ?
Usoro ọgwụgwọ elu ga-adị iche maka ebumnuche dị iche iche.
1 Ebumnuche atọ nke nhazi elu nke akụkụ igwe:
1.1 Usoro nhazi ihu maka inweta izizi akụkụ
Maka akụkụ nwere ihe dakọtara chọrọ, ihe achọrọ maka izi ezi (gụnyere nha nha nha, izi ezi ọdịdị na ọbụlagodi ọnọdụ ọnọdụ) na-adịkarị elu, yana izi ezi na ịdị nhịahụ elu nwere njikọ. Iji nweta izi ezi, a ga-enwerịrị ike ime ihe kwekọrọ. Ọmụmaatụ: izi ezi IT6 n'ozuzu na-achọ ka roughness kwekọrọ ekwekọ Ra0.8.
[N'ụzọ nkịtị na-arụ ọrụ]:
- Na-atụgharị ma ọ bụ egwe ọka
- Ezigbo na-agwụ ike
- ezi egweri
- Na-egweri
1.2 Usoro nhazi nke elu maka inweta ihe eji arụ ọrụ n'elu
1.2.1 Inweta mgbochi iyi
[Ụzọ ndị nkịtị]
- Na-egweri mgbe ị na-agbasi ike ma ọ bụ carburizing / quenching (nitriding)
- Na-egweri na polishing mgbe ike chrome plating
1.2.2 Inweta ezigbo ọnọdụ nrụgide elu
[Ụzọ ndị nkịtị]
- Modulation na egweri
- Ngwọta okpomọkụ dị n'elu na igwe nri
- Mkpọgharị elu elu ma ọ bụ mgbọ egbe na-esote nke ọma na-egweri
1.3 Usoro nhazi iji nweta akụrụngwa kemịkalụ elu
[Ụzọ ndị nkịtị]
- Electroplating na polishing
2 Teknụzụ nchacha elu igwe
2.1 Pụtara Ọ bụ akụkụ dị mkpa nke ngalaba teknụzụ elu na injinia, a na-ejikwa ya na usoro mmepụta mmepụta ihe, ọkachasị na ụlọ ọrụ electroplating, mkpuchi, anodizing na usoro ọgwụgwọ elu dị iche iche.
2.2 Gịnị kpatara paramita elu mbụ na nsonaazụ nsonaazụ nke workpiece ji dị oke mkpa?N'ihi na ha bụ mmalite na ebumnuche nke ọrụ polishing, nke na-ekpebi otú e si ahọrọ ụdị igwe na-egbuke egbuke, yana ọnụ ọgụgụ isi ihe na-egweri, ụdị ihe, ọnụ ahịa, na arụmọrụ achọrọ maka igwe na-egbuke egbuke.
2.3 Egweri & Ndozi ogbo na trajectories
The anọ nkịtị nkebi nkeegwerinapolishing ] : dị ka mmalite na ikpeazụ roughness Ra ụkpụrụ nke workpiece, keadighi rarii - egweri ọma - ezi egweri - polishing. Abrasives na-adị site na nke siri ike ruo nke ọma. The egweri ngwá ọrụ na workpiece ga-ihicha oge ọ bụla ha na-agbanwe.
2.3.1 Ngwá ọrụ egweri siri ike karị, micro-cut na extrusion mmetụta dị ukwuu, na nha na roughness nwere mgbanwe doro anya.
2.3.2 Mechanical polishing bụ ihe siri ike ịkpụ usoro karịa egweri. A na-eji ngwá ọrụ na-egbuke egbuke mee ihe dị nro, nke nwere ike ibelata ihe siri ike ma ọ nweghị ike ịgbanwe nha nha na ọdịdị. Ihe siri ike nwere ike iru ihe na-erughị 0.4μm.
2.4 Echiche atọ nke atọ nke ọgwụgwọ imecha elu: egweri, polishing, na imecha
2.4.1 Echiche nke n'ibu egweri na polishing
Ọ bụ ezie na ma igwe egweri na polishing n'ibu nwere ike ibelata ịdị njọ nke elu, enwerekwa ndịiche:
- 【Mechanical polishing】: Ọ na-agụnye akụkụ ndidi ndidi, udi ndidi na ọnọdụ ndidi. Ọ ghaghị ịgba mbọ hụ na ntachi obi dị n'ụdị, ọdịdị ọdịdị na nkwụsị ọnọdụ nke elu ala mgbe ị na-ebelata ihe siri ike.
- Mechanical polishing: Ọ dị iche na polishing. Ọ na-eme ka njedebe elu dịkwuo mma, mana enweghị ike ịkwenye nnabata nke ntụkwasị obi. Nchapụta ya dị elu ma na-egbuke egbuke karịa ihicha. Ụzọ a na-ejikarị eme ihe n'ibu polishing bụ egweri.
2.4.2 [ịmecha nhazi] bụ usoro egweri na polishing (nke a na-eme ka ọ bụrụ ihe na-egbuke egbuke na polishing) na-eme na workpiece mgbe ọ na-arụ ọrụ nke ọma, na-ewepụ ma ọ bụ na-ewepụ ma ọ bụ na-ewepụ ihe dị oke mkpa nke ihe onwunwe, na nzube bụ isi nke ibelata nhụsianya elu. na-abawanye gloss elu ma na-ewusi elu ya ike.
Izi ezi na ihe siri ike nke elu akụkụ ahụ nwere mmetụta dị ukwuu na ndụ ya na àgwà ya. Ngwunye mebiri emebi nke EDM hapụrụ na micro cracks hapụrụ site na-egweri ga-emetụta ndụ ọrụ nke akụkụ ahụ.
① Usoro mmecha nwere obere ohere machining ma na-ejikarị emeziwanye mma elu. A na-eji obere ego kwalite izi ezi nke igwe (dị ka nha nha na nha nha nha), mana enweghị ike iji ya kwalite izizi ọnọdụ.
② Ịmecha bụ usoro nke ịkpụcha micro na extruding n'elu workpiece na mma-grained abrasives. A na-edozi elu ahụ nke ọma, ike ịkpụ na ịkpụ ọkụ dị ntakịrị, enwere ike nweta oke elu dị elu. ③ Imecha bụ usoro nhazi obere na enweghị ike idozi ntụpọ elu dị ukwuu. A ghaghị ime nhazi nke ọma tupu nhazi.
Ihe kachasị mkpa nke polishing elu igwe bụ n'elu nhọrọ nhazi obere mwepụ.
3. Ugbu a tozuru okè polishing usoro usoro: 3.1 n'ibu polishing, 3.2 chemical polishing, 3.3 electrolytic polishing, 3.4 ultrasonic polishing, 3.5 fluid polishing, 3.6 magnetik egweri polishing,
3.1 Mechanical polishing
Mechanical polishing bụ usoro polishing nke na-adabere na ịkpụ na nrụrụ plastik nke elu ihe iji wepụ ihe ndị a na-egbuke egbuke iji nweta elu dị larịị.
N'iji nkà na ụzụ a, n'ibu polishing nwere ike nweta a elu roughness nke Ra0.008μm, nke bụ kasị elu n'etiti dị iche iche polishing ụzọ. A na-ejikarị usoro a eme ihe na oghere oghere anya.
3.2 Chemical polishing
Nchacha kemịkalụ bụ ime ka akụkụ microscopic convex nke elu ihe gbazere ọkachamma na igwe kemịkalụ karịa akụkụ concave, ka e wee nweta elu dị larịị. Uru ndị bụ isi nke usoro a bụ na ọ chọghị akụrụngwa dị mgbagwoju anya, nwere ike ịchacha ihe ndị na-arụ ọrụ na ụdị dị mgbagwoju anya, nwere ike ihicha ọtụtụ workpieces n'otu oge ma na-arụ ọrụ nke ọma. Isi okwu nke polishing kemịkal bụ nkwadebe nke mmiri mmiri na-egbuke egbuke. Ọdịiche dị n'elu enwetara site na polishing kemịkalụ na-abụkarị ọtụtụ iri iri μm.
3.3 Electrolytic polishing
Nchacha ọkụ eletrik, nke a makwaara dị ka polishing electrochemical, na-ahọrọ nke ọma na-agbaze obere protrusions n'elu ihe ahụ iji mee ka elu dị larịị.
E jiri ya tụnyere kemịkalụ kemịkalụ, mmetụta nke mmeghachi omume cathode nwere ike iwepụ na mmetụta dị mma. E kewara usoro polishing electrochemical ụzọ abụọ:
(1) Macro-leveling: The etisasịwo ngwaahịa na-agbasa n'ime electrolyte, na geometric roughness nke ihe elu na-ebelata, Ra 1μm.
(2) gloss smoothing: Anodic polarization: A na-emeziwanye nchapụta ihu, Ralμm.
3.4 Ultrasonic polishing
A na-etinye workpiece na nkwusioru abrasive ma tinye ya na mpaghara ultrasonic. Abrasive bụ ala ma na-egbu maramara n'elu workpiece site na oscillation nke ultrasonic ife. Ultrasonic machining nwere obere ike macroscopic na agaghị eme ka nrụrụ nke workpiece, ma ngwá ọrụ siri ike ịmepụta na ịwụnye.
Enwere ike ijikọ machining ultrasonic na usoro kemịkalụ ma ọ bụ electrochemical. Na ndabere nke ngwọta corrosion na electrolysis, ultrasonic vibration na-etinye aka ịkpali ihe ngwọta ikewa etisasịwo ngwaahịa na workpiece n'elu na-eme ka corrosion ma ọ bụ electrolyte nso n'elu edo; mmetụta cavitation nke ebili mmiri ultrasonic na mmiri mmiri nwekwara ike igbochi usoro corrosion ma mee ka ọ dịkwuo elu.
3.5 Nchacha mmiri
Nchacha mmiri na-adabere na mmiri mmiri na-agba ọsọ na-agba ọsọ yana ihe abrasive ọ na-ebu na-ehicha elu nke workpiece iji nweta nzube nke polishing.
Ụzọ ndị a na-ejikarị eme ihe gụnyere: nhazi ụgbọ elu abrasive, nhazi ụgbọ mmiri mmiri, ịkwanye mmiri siri ike, wdg.
3.6 Magnetik egweri na polishing
Igwe ndọta na-egweri na polishing na-eji magnetik abrasives na-etolite brushes abrasive n'okpuru omume nke a magnetik na-egweri workpiece.
Usoro a nwere nhazi nhazi dị elu, ịdị mma dị mma, njikwa dị mfe nke ọnọdụ nhazi, yana ezigbo ọnọdụ ọrụ. Site na abrasives kwesịrị ekwesị, ịdị nro dị elu nwere ike iru Ra0.1μm.
Site na edemede a, ekwenyere m na ị ga-enwe nghọta ka mma nke polishing. Dị iche iche nke polishing igwe ga-ekpebi mmetụta, arụmọrụ, ọnụ ahịa na ndị ọzọ na-egosi nke iru dị iche iche workpiece polishing mgbaru ọsọ.
Kedu ụdị igwe na-egbuke egbuke nke ụlọ ọrụ gị ma ọ bụ ndị ahịa gị kwesịrị ọ bụghị nanị na a ga-ejikọta ya dị ka workpiece n'onwe ya, kamakwa dabere na ọchịchọ nke onye ọrụ, ọnọdụ ego, mmepe azụmahịa na ihe ndị ọzọ.
N'ezie, e nwere ụzọ dị mfe ma dị irè isi mee nke a. Biko kpọtụrụ ndị ọrụ anyị tupu ire ere ka ha nyere gị aka.
Oge nzipu: Jun-17-2024