Menene manyan dalilai na cire foda na putty?

Putty foda wani nau'in kayan ado ne na gini, manyan abubuwan da aka gyara sune talcum foda da manne. Farin Layer a saman falon ɗakin da aka siya kawai shine putty. Yawancin lokaci fari na putty yana sama da 90 ° kuma fineness yana sama da 330 °.

Putty wani nau'i ne na kayan tushe da ake amfani dashi don gyaran bango, wanda ya kafa tushe mai kyau don mataki na gaba na kayan ado (zane-zane da fuskar bangon waya). Putty ya kasu kashi biyu: putty na ciki da bangon waje. Fuskar bangon waje na waje na iya tsayayya da iska da rana, don haka yana da kyau gelation, babban ƙarfi da ƙarancin muhalli. Cikakken index na putty a cikin bangon ciki yana da kyau, kuma yana da tsabta da kuma yanayin muhalli. Saboda haka, bangon ciki ba don amfani da waje ba ne kuma bangon waje ba don amfani da ciki ba. Putties yawanci suna dogara ne akan gypsum ko siminti, don haka m saman yana da sauƙin haɗawa da ƙarfi. Duk da haka, a lokacin ginawa, har yanzu yana da mahimmanci don goge wani Layer na wakili na dubawa a kan tushe don rufe tushe da kuma inganta mannewar bangon, don haka putty zai iya zama mafi kyau a hade da tushe.

Mutane da yawa masu amfani da foda na putty dole ne su yarda cewa zubar da ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta ce mai tsanani. Zai sa fenti na latex ya fado, da kuma kumbura da tsagewar Layer ɗin, wanda zai haifar da tsagewar ƙarshen fenti.

De-powdering da whitening na putty foda a halin yanzu shine matsalolin da suka fi dacewa bayan gina ginin. Don fahimtar dalilan putty foda de-powdering, dole ne mu fara fahimtar ainihin kayan aikin da aka gyara da ka'idodin warkarwa na putty foda, sa'an nan kuma hada bangon bango a lokacin gina jiki Dryness, shayar ruwa, zazzabi, bushewar yanayi, da dai sauransu.

8 manyan dalilai na putty foda fadowa a kashe.

dalili daya

Ƙarfin haɗin gwiwa na putty bai isa ya haifar da cire foda ba, kuma masu sana'a suna rage yawan farashi. Ƙarfin haɗin gwiwa na foda na roba ba shi da kyau, kuma adadin ƙarawa kaɗan ne, musamman ma ga bangon ciki na ciki. Kuma ingancin manne yana da alaƙa da adadin da aka ƙara.

Dalili na biyu

Ƙirar ƙira mara ma'ana, zaɓin kayan abu da matsalolin tsarin suna da mahimmanci a cikin dabarar putty. Misali, ana amfani da hydroxypropyl methylcellulose (HPMC) azaman abin sanyawa mara ruwa ga bangon ciki. Ko da yake HPMC yana da tsada sosai, amma ba ya aiki ga abubuwan da ake amfani da su kamar su foda mai tashi biyu, talcum powder, wollastonite powder, da dai sauransu. Idan aka yi amfani da HPMC kawai, zai haifar da delamination. Duk da haka, CMC da CMS masu rahusa ba sa cire foda, amma CMC da CMS ba za a iya amfani da su azaman putty mai hana ruwa ba, kuma ba za a iya amfani da su azaman bangon bango na waje ba, saboda CMC da CMS suna amsawa da foda na calcium mai launin toka da farin siminti, wanda zai haifar da shi. delamination. Akwai kuma polyacrylamides da aka saka a cikin lemun tsami foda da farin siminti a matsayin suturar ruwa, wanda kuma zai haifar da halayen sinadarai don haifar da cire foda.

Dalili Na Uku

Hadawa mara daidaituwa shine babban dalilin cire foda na putty akan bangon ciki da na waje. Wasu masana'antun a cikin ƙasa suna samar da foda mai ɗorewa tare da kayan aiki masu sauƙi da daban-daban. Ba kayan aikin haɗawa ba ne na musamman, kuma haɗakar da ba ta dace ba tana haifar da cire foda na putty.

Dalili na hudu

Kuskuren a cikin tsarin samarwa yana haifar da putty don zama foda. Idan mahautsini ba shi da aikin tsaftacewa kuma akwai ƙarin ragowar, CMC a cikin talakawan putty zai amsa tare da ash calcium foda a cikin sa mai hana ruwa. CMC da CMS a cikin bangon ciki na ciki da bangon waje Farin simintin sabulu yana amsawa don haifar da lalata foda. Wasu na’urori na musamman na wasu kamfanoni suna da tashar tsaftar ruwa, wanda ke iya tsaftace ragowar na’urar, ba wai don tabbatar da ingancin na’urar ba, har ma da yin amfani da na’ura guda don abubuwa da yawa, da kuma siyan kayan aiki guda ɗaya don kera iri-iri. saka.

Dalili Na Biyar

Bambanci a cikin ingancin filler kuma yana iya haifar da de-powdering. Ana amfani da babban adadin fillers a cikin ciki da kuma na waje bango putty, amma abun ciki na Ca2CO3 a nauyi alli foda da talc foda a wurare daban-daban ne daban-daban, da kuma bambanci a cikin pH zai haifar da de-powdering na putty, kamar wadanda. a Chongqing da Chengdu. Ana amfani da foda na roba iri ɗaya don foda na bango na ciki, amma talcum foda da ƙwayar calcium mai nauyi sun bambanta. A Chongqing, ba ya cire foda, amma a Chengdu, ba ya cire foda.

dalili shida

Dalilin yanayin kuma shine dalilin cire foda na putty akan bangon ciki da na waje. Misali, abin da ke jikin bangon ciki da na waje yana da busasshen yanayi da kuma samun iska mai kyau a wasu miyagu a arewa. Akwai yanayin ruwan sama, zafi na dogon lokaci, kayan samar da fina-finai na putty ba shi da kyau, kuma zai rasa foda, don haka wasu yankuna sun dace da putty mai hana ruwa tare da foda alli.

dalili bakwai

Abubuwan da ba a haɗa su ba kamar su foda calcium mai launin toka da farin siminti ba su da najasa kuma sun ƙunshi babban adadin foda na kuda biyu. Abin da ake kira Multi-functional gray calcium foda da farar siminti masu aiki da yawa a kasuwa ba su da najasa, saboda ana amfani da adadi mai yawa na waɗannan ƙazantattun abubuwan haɗin inorganic, kuma abin da ba ya hana ruwa daga bangon ciki da waje ba shakka ba zai zama foda ba. kuma ba hana ruwa ba.

dalili takwas

A lokacin rani, ajiyar ruwa na putty a bangon waje bai isa ba, musamman a wuraren da zafin jiki da kuma samun iska kamar manyan ƙofofi da tagogi. Idan lokacin farko na ash foda da siminti bai isa ba, zai rasa ruwa, kuma idan ba a kiyaye shi da kyau ba, za a yi masa foda da gaske.


Lokacin aikawa: Juni-02-2023