Zvichienderana nekuferefeta nekuongorora, ngura ndeimwe yezvinhu zvakakosha zvinokonzera kukuvara kwemavharuvhu eshavishavi. Nekuti gomba remukati rinosangana nechinhu chiri mukati, rinoora zvakanyanya. Mushure mekuora, dhayamita yevharuvhu inova diki uye kuramba kuyerera kwemvura kunowedzera, izvo zvinokanganisa kutapurirana kwechinhu chiri mukati.pamusoro pemuviri wevharuvhuinonyanya kuiswa pasi kana pasi pevhu. Pamusoro payo panosangana nemhepo uye mhepo ine hunyoro, saka inogona kuita ngura. Chigaro chevharuvhu chakavharwa zvachose apo gomba remukati rinosangana nechinhu chinorishandisa. Nokudaro, kurapwa kwepurasitiki pamusoro pemuviri wevharuvhu neplate yevharuvhu ndiyo nzira yekudzivirira isingadhuri kubva mukuora munzvimbo yekunze.
1. Basa rekuputira pamusoro pevharuvhu reshavishavi
01. Kuzivikanwa kwechinhu chemuviri wevharuvhu
Ruvara rwepamusoro rwunoiswa panzvimbo dzisina kugadzirwa dzemuviri wevharuvhu nebhoneti. Kuburikidza nemavara aya, tinogona kukurumidza kuona zvinhu zvemuviri wevharuvhu uye kunzwisisa zviri nani hunhu hwayo.
| Zvinhu zveMuviri weVharuvhu | Ruvara rwependi | Zvinhu zveMuviri weVharuvhu | Ruvara rwependi |
| Simbi Yakakandwa | Nhema | Ductile Simbi | Bhuruu |
| Simbi Yakagadzirwa | Nhema | WCB | Gireyi |
02. Mhedzisiro yekudzivirira
Mushure mekunge vharuvhu yaputirwa nependi, vharuvhu inenge yaparadzaniswa nezvakatipoteredza. Izvi zvinogona kunzi kudzivirira. Zvisinei, zvinofanira kutaurwa kuti jira rakatetepa rependi harigone kupa simba rekudzivirira. Nekuti mapolymer ane mwero wekufema, kana jira racho rakatetepa, maburi emukati anobvumira mvura neokisijeni kuti zvipfuure zvakasununguka. Mavharuvhu anovhara zvinyoro-nyoro ane zvinodiwa zvakasimba pakukora kwe epoxy resin coating pamusoro. Kuti pave nekukwanisa kunyura kwejira, mavharuvhu anorwisa ngura anofanira kushandisa zvinhu zvinogadzira mafirimu zvine mhepo shoma uye zvinozadza zvakasimba zvine hunhu hwekudzivirira. Panguva imwe chete, huwandu hwemachira ekudzivirira hunofanira kuwedzerwa kuitira kuti jira risvike pakukora kwakati uye rive rakakora uye risingapindi mvura.
03. Kudzivirira ngura
Zvikamu zvemukati zvependi zvinosangana nesimbi kuti zvibvise pamusoro pesimbi kana kugadzira zvinhu zvinodzivirira kuti zvivandudze simba rekudzivirira kwependi. Kune mavharuvhu ane zvinodiwa zvakakosha, unofanirwa kutarisisa kuumbwa kwependi kuti udzivise migumisiro yakaipa. Pamusoro pezvo, mavharuvhu esimbi anoshandiswa mumapaipi emafuta anogonawo kushanda sezvinhu zvinodzivisa ngura nekuda kwezvigadzirwa zvinogadzirwa pasi pesimba remamwe mafuta uye simba rekuomesa kwesipo yesimbi.
04. Dziviriro yemagetsi
Kana dielectric inopinda nepamusoro pesimbi, electrochemical corrosion iri pasi pefirimu inoumbwa. Simbi dzine basa rakawanda kupfuura simbi dzinoshandiswa sefillers mu coatings, dzakadai se zinc. Ichaita basa rekudzivirira se sacrificial anode, uye zvigadzirwa zve corrosion zve zinc i salt-based zinc chloride uye zinc carbonate, izvo zvinozadza mipata iri mufirimu uye zvinoita kuti firimu rive tight, zvichideredza corrosion zvakanyanya uye kuwedzera hupenyu hwevharuvhu.
2. Mapendi anowanzo shandiswa pamavharuvhu esimbi
Nzira dzekugadzirisa pamusoro pemavharuvhu dzinosanganisira kupeta pendi, kugadzika simbi uye kupeta hupfu. Nguva yekudzivirira pendi ipfupi uye haigone kushandiswa mumamiriro ekushanda kwenguva yakareba. Maitiro ekugadzirisa simbi anonyanya kushandiswa mumapaipi. Kupisa-kudivha simbi uye kugadzika simbi zvinoshandiswa. Maitiro acho akaomarara. Kugadzirisa simbi kunoshandisa nzira dzekubika nekugadzira simbi. Pachava neacid nealkali residues pamusoro pechinhu chebasa, zvichisiya ngura. Njodzi yakavanzwa inoita kuti simbi yesimbi ive nyore kudonha. Kudzivirira ngura kwesimbi yesimbi yesimbi kwemakore matatu kusvika mashanu. Kuvhara hupfu kunoshandiswa mumavharuvhu edu eZhongfa kune hunhu hwekupeta hurefu, kuramba ngura, kuramba kukurwa kwevhu, nezvimwewo, izvo zvinogona kusangana nezvinodiwa nemavharuvhu pasi pemamiriro ekushandiswa kwemvura.
01. Kuvhara muviri wevharuvhu epoxy resin
Ine hunhu hunotevera:
·Kuramba ngura: Matanda esimbi akaputirwa ne epoxy resin ane simba rakanaka rekudzivirira ngura, uye simba rekubatanidza nekongiri rinoderera zvakanyanya. Akakodzera mamiriro eindasitiri munzvimbo dzine hunyoro kana nzvimbo dzinopisa.
·Kunamatira kwakasimba: Kuvapo kwemapoka epolar hydroxyl uye ether bonds zviri mu epoxy resin molecular chain zvinoita kuti ibatane zvakanyanya nezvinhu zvakasiyana-siyana. Kuderera kwe epoxy resin kana yagadziriswa kwakaderera, kushushikana kwemukati kunokonzerwa kudiki, uye chifukidziro chekudzivirira pamusoro hachiremi kudonha nekukundikana.
· Hunhu hwemagetsi: Sisitimu ye epoxy resin yakagadziriswa ipurasitiki yakanaka kwazvo ine hunhu hwe dielectric hwakawanda, inodzivirira kubuda kwemvura pamusoro, uye inodzivirira arc.
·Haipindi muvhu: Sisitimu ye epoxy resin yakaporeswa inodzivirira vhudzi rakawanda uye inogona kushandiswa mumamiriro ekunze akaoma.
02. Bhokisi revharuvhu renaironi ndiro yezvinhu
Machira eNylon anodzivirira ngura zvakanyanya uye akashandiswa zvinobudirira mumabasa akawanda akadai semvura, matope, chikafu uye kubvisa munyu mumvura yegungwa.
·Kushanda kwekunze: Chifukidziro chepurasitiki chenaironi chinogona kupasa bvunzo yekupisa munyu. Hachina kusvuuka mushure mekunyudzwa mumvura yegungwa kwemakore anopfuura makumi maviri nemashanu, saka hapana ngura kuzvikamu zvesimbi.
·Kusapfeka: Kusapfeka zvakanaka kwazvo.
·Kudzivirira kukanganiswa: Hapana zviratidzo zvekubviswa kana kurohwa kwakasimba.
3. Maitiro ekupfapfaidza
Maitiro ekupfapfaidza ndeekugadzirira workpiece → kubvisa guruva → kupisa → kupfapfaidza (primer - trimming - topcoat) → kuomesa → kutonhora.
Kupfapfaidza Kupfapfaidza kunonyanya kushandisa kupfapfaidza kwemagetsi. Zvichienderana nehukuru hwebasa, kupfapfaidza kwemagetsi kunogona kukamurwa kuita mutsetse wekugadzira kupfapfaidza kwemagetsi nehupfu. Maitiro maviri aya akafanana, uye musiyano mukuru inzira yekushandura yebasa. Mutsetse wekugadzira kupfapfaidza unoshandisa cheni yekutumira otomatiki, nepo unit yekupfapfaidza ichisimudzwa nemaoko. Ukobvu hwejira hunodzorwa pa250-300. Kana ukobvu huri pasi pe150 μm, mashandiro ekudzivirira achaderedzwa. Kana ukobvu huri pamusoro pe500 μm, kunamira kwejira kuchaderera, kuramba kweimpact kuchaderera, uye kushandiswa kwehupfu kuchawedzera.