Izizathu ezibheke izinkathi zokudura kwekholishi egcinwa ngokuxhasa kuzindawo eziningiwe kakhulu

Ukuhlinzekwa Kwemithombo ne-ukuhlinzekwa Kwe-corrosion: Indima Yokuqala Yokuhlinzekwa Kwe-powder coating

Ukuthi i-epoxy, i-hybrid, ne-polyester chemistries zihlinzeka njani ukukhula kwe-corrosion emilondolozeni yase-acid/alkaline

Izithotho zokubhisha ezihlukahlukene zisebenzisa izinkemikhali zezinkampani zokubhisha ukuze zilungise imiphumela yokuqhubeka kwezindustria. Izinkampani zokubhisha zepoksi ziyasebenza kahle kuzokuba zilungise amasidi nezinkampani zokuvula, kodwa zisuka kusukela uma zibonwa ngomuso wamandla wezulu ngamahora angaphezu kwezilinganiso. Izinkampani zokubhisha zepolyester ziyasebenza kahle kuzokuba zilungise izimemo zeweteru futhi zisebenza kahle kwezinkampani zokuhlangana nezinkampani zokuhlukanisa, okuyinto ephakeme kakhulu ekwahlukweni lezinto ezidinga ukuba zibe ngaphandle. Kunezinhlobo zezinkampani zokubhisha ezihlukahlukene ezinokuthi zilungise izinkampani zepoksi nezinkampani zepolyester, zinokulungisa kahle ukuthi zilungise izinkampani futhi zilungise kahle ukubonwa ngomuso wamandla wezulu. Okubalulekile kakhulu kukuthi zonke lezi zinkampani zidala izihlalo eziningi ngezinye ezizimele ukuthi zilungise izinkampani zokuhlangana ukuze zilungise ukuthi kungabi nesiphambano esingafanele kwezinkinga zokuphatha kwezindustria. Ukuthi kufakelwe kahle ngokwesifundo sokufaka kanye nokuhlanzwa kwesayithi ngokwesifundo sika-ISO 8501-1 Sa 2.5 sivumela ukuthi izinkampani zokubhisha zonke zingathola izikhathi eziningi kunezilinganiso ezingu-1,000 ezingu-ASTM B117. Kodwa khumbula ukuthi iziphumo zokusebenzisa kwezinsizakwane zizohlukahlukene ngokwesifundo sezinkinga zokusebenzisa, njengoko zilungise kahle izinkinga zokusebenzisa, izikhathi ezizingaphezu kwezilinganiso zokubonwa, nokuthi kungabi nesiphambano esingafanele kwezinkinga zokusebenzisa.

Ngaphandle Kwe-Salt Spray: Ukuhumusha Idatha ye-ASTM B117 Emongweni Wokuchayeka Kwezezimboni Kwangempela

Nakuba ukuhlolwa kwe-ASTM B117 kokutshala usawoti kunikeza amazinga okuqhathanisa okuqhathaniswa nokugqwala, izimo zawo ezisheshayo aziziphindi ngokugcwele izimo zezimboni eziyinkimbinkimbi. Izici zangempela ezifana nokuhlushwa kwamakhemikhali, ukushisa, nokuqhekeka okuzenzakalelayo kubangela imiphumela yokuwohloka okungekho ekuhlolweni kwaselabhorethri. Ngokwesibonelo:

• Izindawo zokulungisa amakhemikhali ukuchitheka kwe-asidi egxile ebusweni okudlula emaphutheni amancane okufakwa
• Izikhungo ezisogwini ukulwa nomswakama onosawoti omningi ngemijikelezo eqhubekayo yokuqina
• Izixhobo zokuchithwa kwebhodla ibekezelela amakhemikhali okubulala inzalo nsuku zonke nokushaqeka okushisayo

Onjiniyela bokugqwala baya ngokuya behlanganisa idatha yokugqwala usawoti ngokuhlola okuqondene nesicelo esithilenjengezinqubo zokugqwala okujikelezayo (isb., ISO 16701)okufanisa kangcono izimo zasensimini. Le ndlela ephelele igwema ukuthembela ngokweqile ekuhlolweni kwemethrikhi eyodwa lapho kukhethwa izembozo zezimboni ze-powder.

Ukukhathalela Kwezimali: Ukungcola, Ukugcoba, Nokuphutha Kwesintu Yaqhubeka YokuCoatwa Ngempela

Ukubamba Isibindi: Kungani Izivivinyo ZeLaba (isb. Taber) Azikwazi Ukubonisa Ngcono Ukucolwa Kwisimo

Ukuhlolwa kukaTabar nezindlela ezifanayo ezijwayelekile kusinika ukulinganiswa okuhambisanayo ngoba kusetshenziswa izinto ezifanayo ezihlabayo futhi kufakwa ingcindezi engaguquguquki. Kodwa kwenzekani lapho lezi zembozo zibhekene nezimo zangempela? Izimo zasensimini zibenza babhekane nezinselele eziningi izivivinyo zaselabhorethri ezingakwazi ukuzibamba. Cabanga ngalokhu: udoti ongalindelekile oshaya uvela ezinhlangothini ezihlukene, amazinga omswakama enyuka ehla, amazinga okushisa ashintshashintsha phakathi kwezimo ezibucayi ezishintsha ngempela ukuthi izinto ziba lukhuni kangakanani. Ezindaweni zezimboni, sibona izinga lokugqoka elivame ukuba libi ngokuphindwe kathathu kuya kwabahlanu kunalokho okubikezelwa ukuhlolwa kukaTabar. Kungani? Ngoba izinhlayiya zangempela ziyahluka kakhulu ngosayizi (njengezinhlayiya ze-silica ezingama-50 kuya ku-200 micrometer uma ziqhathaniswa namasondo okuhlola ajwayelekile) futhi kuhlale kukhona uhlobo oluthile lokusebenzisana kwamakhemikhali okwenzekayo. Bheka imishini yokukhiqiza njengohlelo lokuthutha izinto - izembozo zalo zivame ukuwohloka ngokushesha kakhulu emaceleni nasezihlanganisweni lapho imishini yaselebhu ingakwazi ukufinyelela khona. Yingakho noma ubani obheka ukusebenza kahle kokumboza kufanele abheke ukumelana nokugqwala hhayi ngokuzihlukanisa kodwa kanye nendlela okumboza okumelana ngayo namakhemikhali nokuchayeka kwe-UV ngokuhamba kwesikhathi.

Ukuhamba Kwesibonelo Kunye Neziquqo Zokuchitha — Izindlela Ezingakwaziwa Zokuhlukana Kwemifanekiso Yemipuca

Ukubuyela kanye nokuhambana kwesikhathi sokuphakama kwezintemperatya kanye nokushisa kwezintemperatya kwenza ukuthi kubekhe imizwa yokuqhubeka kulesi sikhathi sokuphakama kwezintemperatya kanye nokushisa kwezintemperatya kuleli leli lapho isibonelo sisebenza ngaso, okuyisidingo esisodwa sokubona iziciko zezinye zokuvaleka kanye nokukhula kwamakhemikhali. Izinyathelo zezintemperatya ezihamba ngaphezu kwe-40°C ngokuthi zihlala kuzo ku-ma-furnace e-industriyeli noma emuva kwezinkulungwane zokusebenza. Amapharti wezimboni nezibonelo zabo zokulondoloza zihamba ngokulingana ngokuthi zihlala kuzo, nokuthi kunezilinganiso phakathi kwe-12 kuye ku-30 micrometers ngameter ngalolwandle lwesikhathi. Lokhu kubekha amandla okusheka okuya kuhlaza umkhawulo wokugcina phakathi kwezinto. Lokhu kufika kwezinye ngokuthi amashini ayiqhubeka ngokudlula kahle, kuncane kakhulu emaphakathini njengezibholthi noma kwezilwanyana lapho imizwa iyisikhuba. Ukuchazwa kuka-sayensi kubonisa ukuthi izinhlangano ezihamba ngaphezu kwezinyathelo zezintemperatya zingaphezu kwe-100 ngosuku kuyabona ukuthi izinhlangano ziyadlula ngokuthi zingaphezu kwe-70% kungenxa yezinyathelo zezintemperatya zokugcina. Abaholi bokuprodukha bangakwenza lokhu ngokusebenzisa iziresini ezingenye ngokuthi zihlanganiswe ngokuthi zibe nemithubi yezinto ezihle ngokuthi zihlanganiswe ngokuthi zibe nemithubi yezinto ezihle ngokuthi zihlanganiswe ngokuthi zibe nemithubi yezinto ezihle.

Ukusemthethweni Kwegolide: Imiphumela Yomoya, Umlilo, Nempazamo Kugcobo Lwe-Longevity Lwe-Powder Coating

Polyester vs. Fluoropolymer Powder Coating: Imilingo Ye-QUV Ebekelwayo Nenjongo Yokuqina/Kuhlukunyuka Kusayensi

Ukuthembeka kwezulu kugcina i-polymers emanzini okuphindezela ukuthi iyekwe ngokuphindaphindi, okubangela ukuchithwa kwegloss nokwakha kwezindlela zomthubi ezindaweni. Izimali ze-polyester zingaba nzima ngaphandle, kodwa izivikelo zelaboratory zibhala indaba eyonge. Emva kwezinguqu ezimayelana ne-2000 phansi kwezimo zeQUV, izinhlobo ze-polyester ziphumula ngesikhathi se-gloss ngaphezu kwesihlanu, ngelixa izinhlobo ze-fluoropolymer zidinga kuphela phansi kusuku olunye. Uhlengo luhlelwa kangcono eziphakathini zomncane noma ezindaweni eziyisidima sibamba kakhulu. Izinguqu ze-fluoropolymer zingasebenze ngaphezu kwezinguqu ezingu-15 kulezi zimo eziphilayo, ngempela kungaba ngu-5 ukuya ku-7 izenguqu zezimali ze-polyester. Umshwabo ungasiza isimo ngokuthi uqhathanisa nokudiliza kwezulu ngendlela ethiwa yi-hydrolysis, okufa kakhulu indlela abondakanya ngayo izimali nezinye izinto uma izinkukhu ziyiphindaphinda ngamazulu angu-40 Fahrenheit noma ngaphezulu. Ukuzinza kwezempilo kuyaktheza lokho futhi. Ukubuka kwezempilo kubonisa ukuthi i-fluoropolymers ingahlala njalo ngokuhlakanipha uma ihlanganiswa nezinkinga eziningi ngokuphindaphindi, ibe yigugu ngelixa izimali ze-polyester zingahlukahluka ngoba iqiniso le-molecular structure ayikahlelekile.

Ubukhulu Bocingo: Indlela Yokuhlenga Kwesikhumba Nokufika Kwesikhumba Kuyadefinisa Ukusebenza Kwesikhumba Sokuphatha Ngokushisa

ISO 8501-1 Sa 2.5 Ukuchitha Ngokushisa — Isibalo Esingafihliki Sokubona Kwesikhumba Ngokushisa Emaphakathini Amanzi

Ukufumana ukugcina kahle kwezibhindezi zezibhobho eziphathelene ngokuphelele kudinga ukulungiselela okujulile kwesayizi. Indlela yokucula isayizi ye-ISO 8501-1 Sa 2.5 isusa izinto zonke ezivalekileyo, ubhubhu, nezindlebe kusayizi, ukudala uhlelo olunempelweni oludingekayo ukuthi kuqhutshwa ngokuphelele ekugcineni kwezibhobho. Uma izayizi aziculanga ngaleso 'sayizi esikhulu esihlangothini', izibhobho ziyophazamisa kabusha uma zifakwa phakathi kwebaleni lempilo noma zixhoshwa nezinkambu, okungaba yindlela engaqeda ngayo izinkinga 3-5 imizuzu ngaphezu kwezinye emaphethelweni. Ukucula kahle kwezibhobho kudala umfanekiso wesayizi phakathi kwe-50 ne-85 microns, ukuvumela izibhobho ukuthi ziqhutshane ngendlela yokusebenza kusayizi noma kube khona ukuguqulwa kwesayizi. Ngokulinganisa lokhu noxhumano olulula (isayizi se-St 3) lapho izinto ezingavaleki kakhulu zibalulekile kuzinkinga ezintathu kunezinhlalo zonke zokugcina ezigcinwa eziphakeme kakhulu kwezimali. Amakhanda afakwe ngokulungileyo ngasemthethweni we-Sa 2.5 ayadinga amandla okugcina angu-95% emva kwezikhathi ezingu-10, ngaphandle kwalokho ukuchaza kakhulu kuyabangela ukuthi iziciro zikhiwe ngemizuzu embalwa kuphela.