






Yin simintin gyare-gyare (wanda kuma ake kira "simintin saka hannun jari", "daidaitaccen simintin gyaran fuska", orcire perdue wanda aka karɓa zuwa Ingilishi daga Faransanci) shine tsarin da aka watsar da wani kwafi (oftensilver, Gold, Brassorbronze) daga wani sassaka na asali. Za a iya samun ayyuka masu rikitarwa ta wannan hanya. Babban sanannen misali na wannan fasaha shine tsohuwar layya mai shekaru 6,000 daga Indus Valley Civilization. Sauran misalan daga wasu lokuta na baya sun fito ne daga Mesopotamiya a cikin karni na uku BC da abubuwan da aka gano a cikin Kogon Taskar (Nahal Mishmar) hoardin kudancin Falasdinu (yankin), kuma wanda ke cikin Chalcolithicperiod (4500-3500 BC). Ƙididdiga masu ra'ayin mazan jiya na shekaru daga carbon-14 kwanan wata abubuwan zuwa c. 3700 BC, wanda ya sa su fiye da shekaru 5,700. Basaraken simintin gyare-gyare ya yadu a Turai har zuwa karni na 18, lokacin da tsarin gyaran gyare-gyare ya zama mafi rinjaye.

Matakan da aka yi amfani da su wajen yin ƙananan sassa na tagulla an daidaita su daidai, ko da yake tsarin yau ya bambanta daga tushe zuwa tushe. (A cikin masana'antu na zamani, ana kiran tsarin simintin saka hannun jari.) Bambance-bambancen tsarin sun haɗa da: “Lostmold”, wanda ya gane cewa ana iya amfani da kayan ban da kakin zuma (kamar: tallow, resin, tar, da texttile); da “tsarin sharar gida” ( ko "waste mold simintin gyare-gyare"), saboda mold ya lalace don cire kayan simintin.*Kakin simintin namu ana sarrafa shi ta matakai 79 tare da babban ma'auni da 100% dubawa. Tare da ƙarfin injin ɗinmu na ci gaba, inganci wani abu ne da ba kwa buƙatar damuwa da shi.


Hebei JY Precision Machinery Co. Ltd ne a high-tech sha'anin hada zayyana, tooling tasowa, simintin gyaran kafa, machining, surface jiyya, dubawa, tallace-tallace da sabis duk tare. Kafa a cikin 2017, located in Huanghua, Hebei, JY yanzu maida hankali ne akan wani yanki na fiye da 5000 murabba'in mita. Tare da m bincike & ci gaban yanayi, JY yi amfani da kasuwar-manyan fasahar da gabatar daban-daban na ci-gaba kayan aiki don tabbatar da stringent quality a samar.

A ƙarƙashin ƙungiyar gudanarwa mai ƙarfi, kamfanin ya haɓaka zuwa ƙungiyar tare da ma'aikata sama da 100. Haɗin samfuran yana fitowa daga Bakin Karfe Fitting Bututu, Saurin Haɗin Kai, Bawul Bawul, Duba Valve, zuwa Kayan aikin Marine da Sassan Motoci. Kayan kayan sune 304, 304L, 316, 316L, SF8M, WCB, 1.4408, da dai sauransu-Quality- -Creativity- -Consistency-Wadannan kalmomi sune taken JY, da kuma falsafar da ke motsa kamfani don ba da sabis mafi girma da kuke nema. …
