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Indima Yezimbotshana Enqubweni Yokukhiqiza Igwebu Elilahlekile

2021-11-20
Indima Yezimbotshana Enqubweni Yokukhiqiza Igwebu Elilahlekile

1. Indima, ukubunjwa okuyisisekelo nokusebenza kwe-foam elahlekile yokugqoka

(1) Umsebenzi oyinhloko kapende

  • 1. Isendlalelo sokumboza singathuthukisa amandla nokuqina kwephethini yegwebu, futhi sivimbele iphethini ukuthi ingalinyazwa noma ikhubazekile ngesikhathi sokuphatha, ukumboza, ukugcwaliswa kwesihlabathi, nokudlidliza.
  • 2. Lapho uthela, isendlalelo sokumboza siyindawo yokuhlukanisa phakathi kwensimbi ewuketshezi nesihlabathi esomile. Isendlalelo sokumboza sihlukanisa insimbi encibilikisiwe esihlabathini esigcwele ukuvimbela insimbi encibilikisiwe ukuthi ingangeni esihlabathini, ngaleyo ndlela iqinisekise ukubunjwa kwendawo okubushelelezi nokuhlanzekile ngaphandle kokunamathela kwesihlabathi. Ngesikhathi esifanayo, ivimbela isihlabathi esomile ukuba singagelezi esikhaleni esiphakathi kwensimbi encibilikisiwe negwebu, okubangela ukuba isikhunta sidilike.
  • 3. Isendlalelo sokumboza sivumela imikhiqizo ye-pyrolysis yohlobo lwegwebu (inani elikhulu legesi noma uketshezi, njll.) ukuthi ibaleke ngokushelela esihlabathini esigcwele futhi imunce ngokushesha, ivimbele ukubunjwa ekukhiqizeni amaphutha njengama-pores, imibimbi, ukwanda kwekhabhoni, kanye nezinsalela. (Ngenxa yokuthi izinga lokushisa lokuthulula lihlukile lapho uthela ama-alloys ahlukene, imikhiqizo yokubola yohlobo lwegwebu ihluke kakhulu. Lapho uthela insimbi ephonsiwe, insimbi eyinsimbi nezinye izinsimbi ezisansimbi, ngoba izinga lokushisa lingaphezu kuka-1350-1600 ℃, imikhiqizo ye-pyrolysis Uma ingxubevange ye-aluminium iphonswa, imikhiqizo ye-pyrolysis ikakhulukazi iwuketshezi ngenxa yokushisa okuphansi okungama-760-780 ° C. Imikhiqizo yokubola kwe-liquid idingeka ukuthi ifakwe emanzini. ukunamathela futhi kungene kahle ku-coating. Ungqimba lumuntshwa ukunamathela bese luphuma emgodini.)
  • 4. I-coating inezici zokushisa ezishisayo, ezingagwema futhi zinciphise ukulahlekelwa ukushisa kwensimbi encibilikisiwe phakathi nenqubo yokugcwalisa, futhi kuthuthukise izinga lobuqotho bokugcwalisa izingxenye ezinezindonga ezincane.

(2) Ukwakheka okuyisisekelo kopende

Izingubo ezilahliwe zegwebu ngokuvamile zakhiwe ngezinto eziphikisayo, izibophezelo, izithwali (amanzi, i-ethanol), ama-surfactants, ama-suspending agents, ama-thixotropic agents nezinye izithasiselo. Izithako ezihlukahlukene zixubene ngokulinganayo futhi zidlala indima ebanzi enqubweni yokumboza nokuthulula.
  • 1. Izinto eziphikisayo (ingqikithi). Njengoba igama liphakamisa, yizinto eziwumgogodla ekugqokeni, okunquma ukuphikiswa, ukuzinza kwamakhemikhali, i-adsorption kanye nezakhiwo zokushisa ezishisayo ze-coating. Ukucushwa kosayizi wezinhlayiyana ezimahhadla futhi ezinhle kanye nokuma kwezinhlayiyana kunomthelela omkhulu ekungeneni komoya kwento enamathelayo. Usayizi wezinhlayiyana akufanele ube muhle kakhulu, futhi umumo ungcono kakhulu wekholomu futhi uyindilinga, ulandelwa ama-flakes.
  • 2. Isibopho. Kuyisithasiselo esibalulekile sokuqinisekisa ukuthi igwebu elilahlekile elinamathelayo linamandla amakhulu kanye nokungena komoya okuphezulu. Kunezinhlobo ezimbili eziyinhloko ze-organic kanye ne-inorganic. Phakathi kwazo, izibophezelo eziphilayo (isiraphu, isitashi, i-dextrin, i-carboxymethyl cellulose CMC) zingandisa amandla e-coating ekamelweni lokushisa, futhi zizolahleka ngesikhathi senqubo yokukhipha, ukuthuthukisa ngokuphumelelayo ukuvuthwa komoya we-coating. Izibophezelo ze-inorganic (i-nanobentonite, ingilazi yamanzi, i-silica sol) ingaqinisekisa amandla okugqoka ekamelweni lokushisa nokushisa okuphezulu. Ngokuvamile kudingekile ukusebenzisa ama-binder ahlukahlukene ngendlela efanele ukuze kuqinisekiswe futhi kuthuthukiswe ukusebenza kwe-coating.
  • 3. Umthwali. Okusekelwe emanzini notshwala (utshwala).
  • 4. I-surfactant (i-ejenti yokumanzisa). Ikakhulukazi isetshenziselwa ukuthuthukisa ukuguquguquka kwezingubo ze-foam ezilahlekile ezisekelwe emanzini. Ama-molecule angama-amphiphilic molecule angaba kokubili i-hydrophilic ne-lipophilic. Uma wengezwa kupende, ukuphela kwe-hydrophilic kuhlanganiswe namanzi kupende osekelwe emanzini, futhi ukuphela kwe-lipophilic kukhangwa isikhunta se-foam, okwenza kube okuqondiswe futhi kuhlelwe ebusweni besikhunta se-foam, njengebhuloho elixhumanisa i-foam. isikhunta sepulasitiki nopende.
  • 5. I-ejenti yokumisa. Into engeziwe ukuze kuvinjelwe imvula yezinto eziqinile eziphikisayo enamathela. Ngesikhathi esifanayo, idlala indima ebalulekile ekulungiseni i-rheology yokugqoka kanye nokwenza ngcono ukusebenza kwenqubo yokugqoka. Ukukhethwa okuhambisanayo kusekelwe ikakhulukazi ohlotsheni lwezinto eziphikisayo kanye nohlobo lwesithwali. (Ama-agent avame ukusetshenziselwa ukumisa ama-coating asekelwe emanzini yilawa: i-bentonite, i-attapulgite, i-sodium carboxymethyl cellulose, njll. Ama-agent avame ukusetshenziselwa ukumisa ama-organic solvent coatings yilezi: i-organic bentonite, i-lithium bentonite, i-attapulgite, i-polyvinyl butyral PVB, njll.) .
  • 6. Thixotropic ejenti. Inhlabathi ye-Attapulgite. Thixotropy, ngaphansi kwesenzo sesilinganiso esinqunyiwe se-shear, i-viscosity yokugqoka iyancipha kancane kancane ngokunwetshwa kwesikhathi sokugunda (ukunciphisa), futhi i-viscosity ilulama kancane kancane (i-thickening) ngokunwetshwa kwesikhathi ngemuva kokumiswa kokugunda.
  • 7. Ezinye izesekeli. I-Defoamer, isithasiselo esingakwazi ukuqeda ama-bubbles ku-coating (ama-defoamers avame ukusetshenziswa yilezi: n-butanol, n-pentanol, n-octanol), inani elingeziwe ngu-0.02%. I-Preservative iyisengezo sokuvimbela ukuvutshelwa, ukonakala kanye nokuwohloka kwezingubo ezisekelwe emanzini (i-sodium benzoate iyisilondolozi esisetshenziswa embonini yokudla futhi inokuphepha okuhle). Inani elingeziwe ngu-0.02%-0.04%.
Ama-surfactants, ama-defoamers, nama-preservatives kufanele kwengezwe kanyekanye ngokulingana nenqubo yokulungiselela ukumboza.

(3) Ukusebenza kwe-coating

Izingubo zegwebu ezilahlekile kufanele zibe nalezi zinto ezilandelayo: amandla, ukungena komoya, i-refractoriness, ukufakwa kwe-thermal, ukumelana namakhaza okusheshayo nokushisa, ukumuncwa komswakama, ukukhangisa, ukuhlanza okulula, ukumboza, ukuconsa (ukulinganisa), ukumiswa Linda. Ingahlukaniswa kabanzi izigaba ezimbili: ukusebenza komsebenzi kanye nokusebenza kwenqubo.
  • 1. Ukusebenza komsebenzi. Kubandakanya: amandla, ukungena komoya, i-refractoriness, ukufakwa kwe-thermal, ukubanda okusheshayo nokumelana nokushisa, ukumunca umswakama, ukukhangisa, nokuhlanza kalula. Phakathi kwazo, izakhiwo ezibaluleke kakhulu zingamandla, ukungena komoya, kanye ne-refractoriness.
  • 2. Ukusebenza kwenqubo. Kubandakanya: ukumboza, ukuconsa (ukulinganisa), ukumiswa. Phakathi kwazo, ukusebenza okubaluleke kakhulu ukumboza nokuconsa (ukulinganisa). Ngenxa yokuthi imodeli ye-foam ngokwayo inezindawo ezingezona zokumanzisa, ukugqoka kuyadingeka ukuze kube nezakhiwo ezinhle zokugqoka. Ukuconsa okuphansi (i-leveling) kuyindlela eyinhloko yokuqinisekisa ukushuba okufanayo kwe-coating futhi kuncishiswe imfucuza kanye nokungcoliswa kwemvelo.Ukugqoka kufanele kube nomphumela wenqubo "ominyene kodwa onganamatheli" futhi "ushelele kodwa ungaconsi".
  • 3. Izindlela zokuthuthukisa ukusebenza kwe-coating.

2.Ukukhethwa kwezingubo ze-foam ezilahlekile

(1) Izakhiwo zamakhemikhali (pH)

  • 1. I-Acidic cast iron and cast steel (carbon steel, low-alloy steel) kufanele kukhethwe izinto ezihambisanayo ezine-acidic nezingathathi hlangothi ezifana ne-kyanite, i-flake graphite, isihlabathi se-silica, njll.
  • 2. I-Neutral High-alloy steel kufanele ihambisane ne-acidic ebuthakathaka futhi engathathi hlangothi yezinto eziphikisayo ezifana ne-zirconium kyanite, i-corundum, i-zircon sand, ne-flake graphite.
  • 3. Insimbi ye-alkaline ye-manganese ephezulu kufanele ikhethwe ehambisana nezinto eziphikisayo ze-alkali njenge-magnesia ne-forsterite.
  • 4. Ingxubevange ye-aluminium kufanele ikhethwe ngokuhambisanayo nezinye izinto eziphikisayo

(2) Izakhiwo zomzimba (izinga lokushisa elithelayo)

Izidingo ezihlukene zibekwe phambili ikakhulukazi ngokuya ngezinto ezifana nokusethwa kwesistimu yokugenca, ukulungiselelwa kwepharamitha yenqubo, uhlobo lweqembu elingcwatshwe, imikhuba yokusebenza nobungcweti, kanye nemvelo yasendaweni.

3. Ukulungiswa nokugcinwa kopende

Imishini yokulungiselela ukuhlanganisa ikakhulukazi ihlanganisa isigayo senjoloba, isigayo sebhola, i-mixer enesivinini esiphansi, i-mixer enesivinini esikhulu, njll. Phakathi kwazo, inzuzo yesigayo senjoloba kanye ne-ball mill ukuthi izingxenye ezifana ne-aggregate ne-binder zingamanzisa ngokugcwele. , futhi kukhona amabhamuza ambalwa ahilelekile. Ukungalungi ukusebenza okungalungile, isikhathi eside sokulungiselela ukunamathela kanye nomsindo omkhulu. Izixube zesivinini esikhulu kancane kancane ziye zaba yimishini evamile yokulungisa upende. Uma ungenayo i-mixer enesivinini esikhulu, ungasebenzisa i-mixer enesivinini esincane ukuze wandise isikhathi sokuxuba ukuze uthole umphumela ofanele wokuhlanganisa.

(1) Inqubo yokulungiselela ukumboza

  • 1. Inhloso kanye nomsebenzi wokuxuba ngesivinini esikhulu. Hlanganisa i-powder namanzi kahle ukuze wenze i-slurry efanayo. Ngokushukumisa isivinini esikhulu, imicu kanye nezinto eziyimpuphu ku-binder zingaphansi kokugunda nokucutshungulwa okuhlukene, okulungele ukuxutshwa ngokugcwele. Isikhathi sokuxuba ngesivinini esiphezulu asikho ngaphansi kwamahora angu-2
  • 2. Inhloso kanye nomsebenzi wokuxuba ngesivinini esiphansi. Susa igesi edonswe kupende ngenxa yokugqugquzela isivinini. Ukuqinisekisa amandla okunamathela kusiza ekuthuthukiseni ikhwalithi yangaphezulu ye-casting. Govuza ngesivinini esiphansi amahora angu-2 noma ngokuqhubekayo.

(2) Ukulawulwa kwekhwalithi yepende

  • 1. Ukuminyana. Ibonisa ubuncane bokunamathela, futhi ibuye ibonise ukushuba kokumboza ngesikhathi senqubo yokumboza. Kuyinkomba yekhwalithi ebalulekile yezingubo zokugqoka, futhi ukuminyana ngokuvamile kusetshenziselwa ukulawula indawo yokukhiqiza. Ithuluzi lokulinganisa: i-hydrometer (i-Pomemeter)
  • 2. Inani le-PH (i-acidity, i-alkalinity) ye-coating. Kudingekile ukwengeza izinhlobonhlobo ze-organic binders namanzi ku-coating. Ukuze kuqinisekiswe ukuzinza kwalezi zinto eziphilayo namanzi, kanye nokuguquguquka kwezakhiwo zamakhemikhali zokugqoka ensimbi encibilikisiwe, kufanele ilawulwe. Ingalinganiswa ngephepha lokuhlola le-PH kanye nemitha engu-PH.
  • 3. Isisindo sokugqoka. Ubukhulu be-coating bungalinganiselwa ngokukala isisindo semodeli ngemva kokumbozwa okubili nokulinganisa isisindo sokugqoka.

(3) Ukugcinwa kopende

Upende ulungiswa kangcono nganoma yisiphi isikhathi futhi usetshenziswe ngesikhathi. Upende osele kulula ukuwugcina endaweni epholile futhi akufanele ugcinwe isikhathi eside. Ngokuya ngesimo sezulu kanye nemvelo yendawo yokugcina, isikhathi sokugcina esijwayelekile ehlobo siyizinsuku ezingu-2-5, kanti isikhathi sokugcina ebusika: izinsuku ezingu-5-10. Ngesikhathi esifanayo, ukuvutshelwa noma ukuqandisa kufanele kugwenywe.

4. Ukugqoka kanye nezinyathelo zokuphepha

(1) Indlela yokuhlanganisa (ukuxubha, ukucwiliswa, ukugeza, ukufutha) kanye nobubanzi bokufaka isicelo

Ibhulashi: ilungele ukukhiqizwa kweqeqebana elincane lomumo ophakathi nendawo nomkhulu. Ukucwilisa nokucwilisa: kulungele izimo ezincane ezinamaqoqo amakhulu kanye nezimo eziyinkimbinkimbi. Futha: Ngokujwayelekile ilungele izimo ezinezindonga ezincane noma ezigogeke kalula futhi ezilimele kalula.

(2) Ukukhetha okunengqondo kokuqina kwe-coating

Ugqinsi lwe-coating kufanele lubekwe ngokuningiliziwe ngokuya ngezidingo zezici ezifana nohlobo lwensimbi encibilikisiwe, ukwakheka kokubunjwa, ubunkimbinkimbi bomumo, isisindo, ukushuba kodonga, nokumiswa nokukhethwa kwesistimu yokugenca. Ukuze uthole isampula yesikhunta, ukushuba kokumboza kufanele kuncishiswe ngangokunokwenzeka esakhiweni sokuqinisekisa amandla nokumelana nokuguguleka kwento enamathelayo ukuze kusize ukuthuthukisa ukungena komoya. Ungakhetha phakathi kuka-0.3-3.5mm. Ngohlelo lokugaya, amandla okugqoka kufanele anyuswe ngangokunokwenzeka, futhi ubukhulu bokugqoka kufanele bukhuliswe ngokufanele, okungakhethwa phakathi kuka-3.5-6mm.

(3) Izindaba ezidinga ukunakwa

  • 1. Sebenzisa ngokugcwele i-thixotropy yezingubo ezisekelwe emanzini (i-viscosity ye-coating iyancipha ngesikhathi senqubo yokugqugquzela, futhi i-viscosity iphakama ngemva kokuyeka ukugubha). Ngaphansi kwesimo sokugqugquzela okuqhubekayo nokulawulwa kokushisa, ukugqoka kwenziwa ukuze kutholakale ukugqoka okufanayo futhi kunciphise ukuguqulwa kwemodeli.
  • 2. Khetha isivinini esishukumisayo esifanele. Ingalawulwa ngo-10-20 revolutions/min. Uma ijubane elijikelezayo liphansi kakhulu, upende ungase uphuze; uma ijubane elijikelezayo liphezulu kakhulu, upende uzobe ugcwele igesi futhi ukhiqize amabhamuza.
  • 3. Kufanele kuqashelwe ukuze kulawulwe ngokunengqondo indawo, i-engeli, indlela, isivinini, amandla, njll. yephethini ecwiliswe kupende ukuze kuvinjelwe amaphutha nezinkinga ezinjengokonakala, umonakalo, namabhamuza.
  • 4. Ukuze uhlanganise, qinisekisa ukuthi ukugqoka kufana nokufana futhi ukumboza ngokuphelele zonke izingxenye zephethini.
  • 5. I-Anti-deformation kanye ne-anti-breakage kufanele isebenze kuyo yonke inqubo yokumboza nokulenga. Lapho ubeka imodeli eboshiwe, umphumela wokumisa nokuvimbela ukuguqulwa nokulimala kufanele kucatshangelwe ngokugcwele.

(4) Imikhuba emibi evamile emisebenzini yokudweba

  • 1. Shake. Imodeli eboshiwe kufanele ibekwe eshalofini elimile, futhi upende uzoconsa ngokwemvelo ukuze uthole ukunamathela okufanayo nokubushelelezi. Nakuba ukuzamazama okwenziwayo kungakhuphula ijubane lokumboza, ngasikhathi sinye, kuzophinde kubhubhise ukufana nokulinganisa kwe-coating, okubangela ukuthi ukugqoka kube mncane noma kuqoqwe endaweni. (Faka ividiyo)
  • 2. Amazolo. Ibizwa nangokuthi "Lu Bai" njengoba isisho sisho. Ingxenye yokugqoka noma indawo enkulu ayihlanganisiwe ngopende, futhi akukho zinyathelo ezithathwayo zokuyilungisa, futhi ivunyelwe ukudluliselwa kwinqubo elandelayo. Lokhu kuzodala ukuthi ukugqoka kube mncane futhi kunciphise amandla nezinye izakhiwo, okuzothinta ikhwalithi yokukhipha. (Faka isithombe)

5. Ukomiswa kopende

(1) Indlela yokomisa kanye nemishini

Indlela yemvelo yokuvikela imvelo: Sebenzisa okomisa umoya ovulekile noma igumbi lelanga, ukushisa okushisa nokomisa ukuze kuzuzwe umphumela wokuphelelwa amanzi emzimbeni, ukucwiliswa kwamanzi kanye nokomisa. Indlela yokushisa neyokukhipha umswakama: Igumbi lokomisa elikhethekile lisetshenziselwa ukwandisa nokugcina izinga lokushisa legumbi lokomisa ngokushisa amalahle, igesi, amandla kagesi, i-geothermal, isitimu, njll., kanye nemishini ekhethekile isetshenziselwa ukukhipha umswakama ukuze kuzuzwe umphumela ukuphelelwa amanzi emzimbeni, ukucwiliswa kwamanzi kanye nokomisa.

(2) Ukulawulwa kwekhwalithi yenqubo yokomisa

  • 1. Ukomisa izinga lokushisa. 35-50 ℃. Ukomisa izinga lokushisa eliphansi kungasetshenziswa ngesisekelo sokuthi umphumela wokukhipha umswakama nokusebenza kahle kuqinisekisiwe. Ngesikhathi esifanayo, izinga lokushisa lokumisa akufanele libekwe phezulu kakhulu. Uma izinga lokushisa lingaphezu kuka-50 ° C, imodeli ijwayele ukubhekana nezinkinga ezifana nokuthambisa nokuwa kwe-colloid.
  • 2. Izinga lokushisa. Isivinini sokushisisa akufanele sisheshe kakhulu, futhi kufanele silawulwe ku-5-10℃/ihora. Uma isivinini sokushisa sishesha kakhulu, ukugqoka kujwayele ukuqhekeka, i-delamination noma ngisho nokuxebuka.
  • 3. Isikhathi sokumisa. Ngokuya ngobunzima nobukhulu bemishini ethile yokomisa, imvelo kanye nemodeli, ngokuvamile, isikhathi sokumisa se-coating yokuqala kufanele ilawulwe amahora angu-8-12 noma ngaphezulu. Isikhathi sokumisa se-coating yesibili kufanele ilawulwe phakathi kwamahora angu-16-24 noma ngaphezulu, futhi isikhathi sokumisa se-coating yesithathu kufanele silawulwe kungakapheli amahora angu-20-24 noma ngaphezulu. Empeleni, isheke lokukala kufanele lenziwe phakathi kwephasi ngayinye. Ngemuva kokuqinisekisa ukuthi isomile ngokuphelele, upende kufanele usetshenziswe ngokuzayo.
  • 4. Ukulungisa nokulungisa i-coating.

Xhumanisa nale ndatshana:Indima Yezimbotshana Enqubweni Yokukhiqiza Igwebu Elilahlekile 

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