Izizathu kunye nezisombululo zokuqhekeka kwee-castables ngexesha lokubhaka

Izizathu zokuqhekeka kwezinto ezifakwa kwi-castable ngexesha lokubhaka ziyinkimbinkimbi kakhulu, ziquka izinga lokufudumeza, umgangatho wezinto ezisetyenzisiweyo, iteknoloji yokwakha kunye nezinye izinto. Oku kulandelayo luhlalutyo oluthile lwezizathu kunye nezisombululo ezifanelekileyo:

1. Izinga lokufudumeza likhawuleza kakhulu
Isizathu:

Ngexesha lenkqubo yokubhaka izinto eziphoswayo, ukuba izinga lokufudumeza likhawuleza kakhulu, amanzi angaphakathi ayaphela ngokukhawuleza, kwaye uxinzelelo lomphunga oluvelayo luba lukhulu. Xa ludlula amandla okutyhafa kwezinto eziphoswayo, kuya kuvela imingxunya.

Isisombululo:

Phuhlisa i-baking curve efanelekileyo kwaye ulawule isantya sokufudumeza ngokwezinto ezifana nohlobo kunye nobukhulu be-castable. Ngokubanzi, inqanaba lokuqala lokufudumeza kufuneka licothe, kungcono lingadluli kwi-50℃/h. Njengoko ubushushu bunyuka, isantya sokufudumeza sinokukhawuleziswa ngokufanelekileyo, kodwa kufuneka silawulwe malunga ne-100℃/h - 150℃/h. Ngexesha lenkqubo yokubhaka, sebenzisa i-temperature recorder ukujonga utshintsho lobushushu ngexesha langempela ukuqinisekisa ukuba isantya sokufudumeza siyahlangabezana neemfuno.

2. Ingxaki yomgangatho wezinto eziphathekayo
Isizathu:

Umlinganiselo ongafanelekanga we-aggregate kwi-powder: Ukuba kukho ii-aggregate ezininzi kakhulu kwaye i-powder eyaneleyo, ukusebenza kwe-bonding ye-castable kuya kuncipha, kwaye ii-cracks ziya kubonakala lula ngexesha lokubhaka; ngokuchaseneyo, i-powder eninzi iya kwandisa izinga lokuncitshiswa kwe-castable kwaye ibangele ii-cracks ngokulula.
Ukusetyenziswa gwenxa kwezithako zokongeza: Uhlobo kunye nobungakanani bezithako zokongeza zinempembelelo ebalulekileyo ekusebenzeni kwethako lokufaka. Umzekelo, ukusetyenziswa kakhulu kwethako lokunciphisa amanzi kunokubangela ukunyibilika kakhulu kwethako lokufaka, okubangela ukwahlulwahlulwa ngexesha lenkqubo yokuqina, kwaye kuya kuvela imingxunya ngexesha lokubhaka.
Isisombululo: 

Lawula ngokungqongqo umgangatho wezinto ezikrwada, kwaye ulinganise ngokuchanekileyo izinto ezikrwada ezifana nee-aggregates, ii-powders kunye nezongezo ngokweemfuno zefomula ezibonelelwe ngumvelisi. Hlola rhoqo kwaye uhlole izinto ezikrwada ukuqinisekisa ukuba ubungakanani bazo beesuntswana, uhlengahlengiso kunye nokwakheka kweekhemikhali kuyahlangabezana neemfuno.

Kwizinto ezisetyenzisiweyo ezintsha, qala ngokwenza uvavanyo lwesampulu encinci ukuze kuvavanywe ukusebenza kwento ephoswayo, njengokunyibilika, amandla, ukuncitshiswa, njl.njl., lungisa ifomula kunye nomthamo wokongeza ngokweziphumo zovavanyo, uze uzisebenzise ngomlinganiselo omkhulu emva kokuba zifanelekile.

3. Iingxaki zenkqubo yokwakha
Izizathu:

Ukuxubana okungalinganiyo:Ukuba i-castable ayixutywanga ngokulinganayo ngexesha lokuxuba, amanzi kunye nezongezo ezikuyo ziya kusasazwa ngokungalinganiyo, kwaye kuya kubakho imingxunya ngexesha lokubhaka ngenxa yokwahluka kokusebenza kwiindawo ezahlukeneyo.
Ukungcangcazela okungaxinenanga: Ngexesha lokugalela, ukungcangcazela okungaxinenanga kuya kubangela iimbobo kunye nemingxuma ngaphakathi kwento ephoswayo, kwaye ezi ndawo zibuthathaka zinokuba neentanda ngexesha lokubhaka.

Ulondolozo olungafanelekanga:Ukuba amanzi aphezu kwesixhobo sokugalela amanzi akagcinwanga ngokupheleleyo emva kokugalelwa, amanzi ayaphela ngokukhawuleza, nto leyo eya kubangela ukushwabana okukhulu komphezulu kunye nokuqhekeka.

Isisombululo:

Sebenzisa ukuxuba ngoomatshini kwaye ulawule ngokungqongqo ixesha lokuxuba. Ngokubanzi, ixesha lokuxuba lomxube onyanzelekileyo alikho ngaphantsi kwemizuzu emi-3-5 ukuqinisekisa ukuba i-castable ixutywe ngokulinganayo. Ngexesha lenkqubo yokuxuba, yongeza amanzi afanelekileyo ukuze i-castable ifikelele kulwelo olufanelekileyo.
Xa ungcangcazela, sebenzisa izixhobo ezifanelekileyo zokungcangcazela, ezifana neentonga zokungcangcazela, njl.njl., kwaye ungcangcazele ngokulandelelana okuthile kunye nesithuba esithile ukuqinisekisa ukuba into ephoswayo ixinene. Ixesha lokungcangcazela lifanelekile ukuba kungabikho maqamza kwaye kutshone phezu kwendawo ephoswayo.

Emva kokugalela, ukugalela kufuneka kwenziwe ngexesha. Ifilimu yeplastiki, iimathi zengca ezimanzi kunye nezinye iindlela zingasetyenziswa ukugcina umphezulu wento egalelwayo umanzi, kwaye ixesha lokugalela ngokubanzi alikho ngaphantsi kweentsuku ezisi-7-10. Kwizinto ezigalelwayo ezinkulu okanye izinto ezigalelwayo ezakhiwe kwiindawo ezinobushushu obuphezulu, ukugalela ngokutshiza kunye nezinye iindlela nazo zinokuthathwa.

4. Ingxaki yendawo yokubhaka
Isizathu:
Ubushushu obujikeleze umhlaba buphantsi kakhulu:Xa ubhaka kwindawo enobushushu obuphantsi, isantya sokuqina nokomisa kwe-castable sihamba kancinci, kwaye kulula ukuyikhenkceza, nto leyo ebangela umonakalo ngaphakathi kwisakhiwo, ngaloo ndlela iqhekeke.

Umoya ongangeni kakuhle:Ngexesha lenkqubo yokubhaka, ukuba umoya awugudi, amanzi aphuma ngaphakathi kwesitya sokuphosa amanzi awanakukhutshelwa ngexesha, aze aqokeleleke ngaphakathi ukuze enze uxinzelelo oluphezulu, nto leyo ebangela ukuqhekeka.

Isisombululo:
Xa ubushushu obuphakathi bungaphantsi kwe-5℃, kufuneka kuthathwe amanyathelo okufudumeza, njengokusebenzisa isifudumezi, umbhobho womphunga, njl.njl. ukufudumeza kwangaphambili indawo yokubhaka, ukuze ubushushu obuphakathi bunyuke bufikelele kwi-10℃-15℃ ngaphambi kokubhaka. Ngexesha lenkqubo yokubhaka, ubushushu obuphakathi kufuneka bugcinwe buzinzile ukuze kuthintelwe ukuguquguquka okugqithisileyo kobushushu.

Beka kakuhle ii-vents ukuqinisekisa ukuba umoya ungena kakuhle ngexesha lenkqubo yokubhaka. Ngokwesayizi kunye nokuma kwezixhobo zokubhaka, ii-vents ezininzi zinokusetwa, kwaye ubungakanani bee-vents bungalungiswa njengoko kufuneka ukuqinisekisa ukuba umswakama unokukhutshwa kakuhle. Kwangaxeshanye, kufuneka kuthathwe unonophelo ukuze kuthintelwe ukubeka ii-castables ngqo kwii-vents ukuze kuthintelwe ukuqhekeka ngenxa yokomisa komoya ngokukhawuleza.