1 Matsalolin gama gari a cikin bangon putty:
(1) Yana bushewa da sauri.
Wannan shi ne yafi saboda adadin ash calcium foda da aka saka (ya yi yawa, adadin ash calcium foda da aka yi amfani da shi a cikin tsari na putty za a iya rage shi yadda ya kamata) yana da alaka da yawan ajiyar ruwa na fiber, kuma yana da alaka da bushewa. na bango.
(2) Bare da mirgina.
Wannan yana da alaƙa da ƙimar riƙewar ruwa, wanda ke da sauƙin faruwa lokacin da danko na cellulose ya yi ƙasa ko adadin ƙari yana ƙarami.
(3) De-powdering na ciki bango putty foda.
Wannan yana da alaƙa da adadin ash calcium powder ɗin da aka saka (yawan ash calcium powder a cikin tsari na putty ya yi kadan ko kuma tsarkin ash calcium ya yi ƙasa sosai, kuma adadin ash calcium powder a cikin tsari na putty ya kamata. a haɓaka da kyau), kuma yana da alaƙa da ƙari na cellulose. Akwai dangantaka tsakanin yawa da inganci, wanda ke nunawa a cikin adadin riƙe ruwa na samfurin. Adadin ajiyar ruwa yana da ƙasa, kuma ash calcium foda (calcium oxide a cikin ash calcium foda ba a cika juyowa zuwa calcium hydroxide don hydration) lokaci bai isa ba, wanda aka haifar.
(4) Kumburi.
Wannan yana da alaƙa da busasshen zafi da faɗin bango, kuma yana da alaƙa da ginin.
(5) Mahimman bayanai sun bayyana.
Wannan yana da alaƙa da cellulose, wanda ke da ƙarancin samar da fim. A lokaci guda, ƙazanta a cikin cellulose suna amsa dan kadan tare da ash calcium. Idan abin ya kasance mai tsanani, foda mai sanyawa zai bayyana a cikin yanayin ragowar wake na wake. Ba za a iya sanya shi a bango ba, kuma ba shi da ƙarfin haɗin gwiwa a lokaci guda. Bugu da ƙari, wannan yanayin yana faruwa tare da samfurori irin su ƙungiyoyin carboxyl da aka kara da cellulose.
(6) Ramukan mai aman wuta da ramukan fitilun suna bayyana.
Wannan a fili yana da alaƙa da tashin hankalin saman ruwa na hydroxypropyl methylcellulose aqueous bayani. Tashin tebur na ruwa na maganin ruwa na hydroxyethyl ba a bayyane yake ba. Zai yi kyau a yi maganin gamawa.
(7) Bayan putty ta bushe, yana da sauƙi a fashe kuma ya juya rawaya.
Wannan yana da alaƙa da ƙari mai yawa na ash-calcium foda. Idan an ƙara adadin ash-calcium foda da yawa, taurin foda zai karu bayan bushewa. Idan foda putty ba shi da sassauci, zai fashe cikin sauƙi, musamman ma lokacin da aka sa shi da ƙarfi na waje. Hakanan yana da alaƙa da babban abun ciki na calcium oxide a cikin ash calcium foda, wanda aka gabatar a baya.
2 Me yasa foda ya zama bakin ciki bayan ƙara ruwa?
Ana amfani da Cellulose azaman mai kauri da mai riƙe da ruwa a cikin putty. Saboda thixotropy na cellulose kanta, ƙari na cellulose a cikin putty foda kuma yana haifar da thixotropy bayan ƙara ruwa zuwa putty. Wannan thixotropy yana haifar da lalacewa ta hanyar lalata tsarin haɗin kai na abubuwan da ke cikin foda. Wannan tsarin yana tasowa a lokacin hutawa kuma yana rushewa a ƙarƙashin damuwa. Wato danko yana raguwa a karkashin motsawa, kuma danko yana farfadowa lokacin da yake tsaye.
3 Me yasa putty yayi nauyi sosai a aikin gogewa?
A wannan yanayin, danko na cellulose gabaɗaya da ake amfani da shi ya yi yawa. Wasu masana'antun suna amfani da cellulose 200,000 don yin putty. Kayan da aka samar ta wannan hanya yana da babban danko, don haka yana jin nauyi lokacin da ake gogewa. Adadin da aka ba da shawarar putty don ganuwar ciki shine 3-5 kg, kuma danko shine 80,000-100,000.
4 Me ya sa tuti da turmi da aka yi da cellulose tare da danko iri ɗaya suke ji daban-daban a lokacin hunturu da bazara?
Saboda thermal gelation na samfurin, dankon samfurin zai ragu a hankali tare da karuwar zafin jiki. Lokacin da zafin jiki ya zarce zafin gel na samfurin, samfurin zai haɗe daga ruwa kuma ya rasa danko. Yanayin zafin jiki a lokacin rani gabaɗaya yana sama da digiri 30, wanda ya bambanta da yanayin zafi a lokacin hunturu, don haka danko yana ƙasa. Ana bada shawara don zaɓar samfurin tare da danko mafi girma lokacin da ake amfani da samfurin a lokacin rani, ko don ƙara yawan adadin cellulose, da kuma zaɓar samfurin da zafin jiki mafi girma. Gwada kada ku yi amfani da methyl cellulose a lokacin rani, yawan zafin jiki na gel yana kusa da digiri 55, idan zafin jiki ya dan kadan sama, danko zai yi tasiri sosai.
Lokacin aikawa: Nuwamba-26-2022