A ƙarƙashin yanayi na al'ada, daidaiton girman madaidaicin simintin gyare-gyare yana shafar abubuwa da yawa kamar tsarin simintin, simintin gyare-gyare, yin gyare-gyare, yin harsashi, yin burodi, zubowa, da dai sauransu. Duk wani saiti ko aiki mara ma'ana na kowane hanyar haɗi zai canza ƙimar raguwar simintin. Wannan yana haifar da sabani a cikin daidaiton girman simintin gyare-gyare daga abubuwan buƙatu. Wadannan su ne abubuwan da zasu iya haifar da lahani a cikin daidaiton girman girman simintin gyare-gyare:
(1) Tasirin tsarin jefawa: a. Kaurin bangon simintin gyare-gyare, babban ƙimar raguwa, bangon simintin simintin simintin, ƙaramin raguwa. b. Matsakaicin raguwar kyauta yana da girma, kuma adadin raguwar da aka hana yana da karami.
(2) Tasirin kayan jefawa: a. Mafi girman abin da ke cikin carbon a cikin kayan, ƙarami ƙimar raguwar layi, da ƙarancin abun ciki na carbon, mafi girman ƙimar raguwar madaidaiciyar. b. Matsakaicin raguwar simintin gyare-gyare na kayan gama gari shine kamar haka: ƙimar raguwar simintin simintin K=(LM-LJ)/LJ×100%, LM shine girman rami, kuma LJ shine girman simintin. K yana shafar abubuwa masu zuwa: kakin zuma K1, tsarin simintin simintin K2, nau'in gami K3, zubar da zafin jiki K4.
(3) Tasirin yin gyare-gyare akan mizani na raguwar simintin gyare-gyare: a. Tasirin zazzabin allurar kakin zuma, matsa lamba na allurar kakin zuma, da matsi na riƙe lokaci akan girman saka hannun jari shine mafi bayyane a cikin zafin allurar da kakin zuma, sannan matsin allurar kakin zuma yana biye da shi, kuma an tabbatar da lokacin riƙe matsi Bayan an kafa hannun jari, yana da ɗan tasiri akan girman ƙarshen saka hannun jari. b. Matsakaicin raguwar kakin zuma (mold) abu shine kusan 0.9-1.1%. c. Lokacin da aka adana ƙirar jarin, za a sami ƙarin raguwa, kuma ƙimar ƙimar ta kusan kashi 10% na jimlar raguwar, amma lokacin da aka adana shi tsawon sa'o'i 12, girman ƙirar jarin yana da tsayayye. d. Matsakaicin raguwar radial na ƙirar kakin zuma shine kawai 30-40% na ƙimar raguwar tsayin tsayi. Zazzaɓin allurar kakin zuma yana da tasiri mafi girma akan ƙimar raguwar kyauta fiye da ƙimar raguwa mai hanawa (mafi kyawun zazzabin allurar kakin zuma shine 57-59 ℃, Mafi girman zafin jiki, mafi girman raguwa).
(4) Tasirin kayan aikin harsashi: zircon yashi, zircon foda, Shangdian yashi da Shangdian foda ana amfani da su. Saboda ƙananan haɓakar haɓakawar su, kawai 4.6 × 10-6 / ℃, ana iya watsi da su.
(5) Tasirin yin burodin harsashi: Saboda haɓaka ƙimar harsashi kaɗan ne, lokacin da zafin jiki na harsashi ya kai 1150 ℃, 0.053% ne kawai, don haka ana iya yin watsi da shi.
(6) Tasirin zafin simintin: mafi girman zafin simintin, mafi girman ƙimar raguwa, da ƙananan zafin simintin, ƙarami ƙimar raguwa, don haka zafin simintin ya kamata ya dace.
Lokacin aikawa: Nuwamba-15-2021