HPMC da putty foda

1. Menene babban aikin aikace-aikacen HPMC a cikin foda mai sakawa? Shin akwai wani maganin sinadari?

——Amsa: A cikin putty foda, HPMC tana taka rawar uku na kauri, riƙe ruwa da gini. Kauri: Za a iya kauri cellulose don dakatarwa da kuma kiyaye maganin daidai sama da ƙasa, da tsayayya da sagging. Riƙewar ruwa: sanya foda ta bushe a hankali, kuma ta taimaka wa ash calcium don amsawa ƙarƙashin aikin ruwa. Gina: Cellulose yana da sakamako mai lubricating, wanda zai iya sa foda na putty yana da kyakkyawan gini. HPMC baya shiga cikin kowane halayen sinadarai, amma yana taka rawar taimako kawai. Ƙara ruwa a cikin foda da kuma sanya shi a kan bango wani nau'in sinadari ne, saboda sababbin abubuwa suna samuwa. Idan ka cire foda da ke jikin bango daga bangon, ka niƙa shi ya zama foda, ka sake amfani da shi, ba zai yi aiki ba saboda an samu sababbin abubuwa (calcium carbonate). ) kuma. Babban abubuwan da ke cikin ash calcium foda sune: cakuda Ca (OH) 2, CaO da ƙaramin adadin CaCO3, CaO H2O = Ca (OH) 2 -Ca (OH) 2 CO2 = CaCO3↓ H2O Matsayin ash calcium a cikin CO2 a cikin ruwa da iska A ƙarƙashin wannan yanayin, ana samar da calcium carbonate, yayin da HPMC ke riƙe da ruwa kawai, yana taimakawa mafi kyawun dauki na ash calcium, kuma baya shiga cikin kowane hali da kansa.

2. Menene adadin adadin HPMC da aka ƙara a cikin foda mai sakawa?

--Amsa: Adadin HPMC da aka yi amfani da shi a aikace-aikace masu amfani ya bambanta dangane da yanayi, zafin jiki, ingancin ash ash na gida, tsari na putty foda da "ingancin da abokan ciniki ke buƙata". Kullum magana, tsakanin 4 kg da 5 kg. Misali: mafi yawan foda a birnin Beijing kilogiram 5 ne; yawancin foda a cikin Guizhou shine kilogiram 5 a lokacin rani da 4.5 kg a cikin hunturu; Adadin putty a Yunnan yana da ɗan ƙaramin ƙarfi, gabaɗaya kilogiram 3 zuwa 4 kg, da sauransu.

3. Menene daidai danko na HPMC a putty foda?

——Amsa: Gabaɗaya, yuan 100,000 ya isa don yin foda, kuma buƙatun turmi sun fi girma, kuma ana buƙatar yuan 150,000 don amfani cikin sauƙi. Bugu da ƙari, mafi mahimmancin aikin HPMC shine riƙe ruwa, wanda ya biyo baya tare da kauri. A cikin foda mai sakawa, idan dai ruwa yana da kyau kuma danko yana da ƙananan (70,000-80,000), yana yiwuwa kuma. Tabbas, mafi girman danko, mafi kyawun riƙewar ruwa. Lokacin da danko ya wuce 100,000, danko zai shafi riƙewar ruwa. Ba yawa kuma.

4. Me yasa foda mai sabulu ke yin kumfa?

——Amsa: Al’amari: Ana haifar da kumfa a lokacin aikin gini kuma bayan wani ɗan lokaci, saman abin da ake sakawa yana blister.

sanadi:

1. Tushen yana da ƙarfi sosai kuma saurin plastering yana da sauri;

2. Layer putty a cikin ginin daya yayi kauri sosai, ya fi 2.0mm;

3. Danshin da ke cikin ciyawar ya yi yawa, kuma yawan ya yi yawa ko ƙanƙanta.

4. Bayan wani lokaci na ginawa, fashewa da kumfa a saman ya fi faruwa ne ta hanyar haɗuwa mara kyau, yayin da HPMC ke taka rawa wajen riƙe ruwa, yin kauri da inganta aikin aiki a cikin foda, kuma baya shiga cikin kowane hali.

5. Menene dalilin cire foda na putty foda?

——Amsa: Wannan yana da alaƙa da yawa da ingancin calcium mai launin toka da aka ƙara. Ƙananan abun ciki na calcium na calcium mai launin toka da rashin dacewa na CaO da Ca (OH) 2 a cikin calcium mai launin toka zai haifar da cire foda. A lokaci guda kuma, yana da alaƙa da HPMC. Adadin ajiyar ruwa ya ragu, kuma lokacin shayarwar calcium bai isa ba, wanda kuma zai haifar da cire foda.

6. Me yasa ma'auni ke da nauyi a cikin aikin gogewa?

——Amsa: A wannan yanayin, dankon 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 saka foda don ganuwar ciki shine 3-5 kg, kuma danko shine 80,000-100,000.