Chifukwa chiyani zokutira za Dacromet sizingayikidwe pamalo otentha kwambiri?

Adalemba pa 2019-03-11Zida za Dacromet zimagwira ntchito yofunika kwambiri pamakampani amakono.Zovala za Dacromet ndizofala kwambiri popanga, koma zophimba za Dacromet sizingasungidwe pa kutentha kwakukulu.Chifukwa chiyani?Chifukwa chake ndi chakuti pali zabwino zambiri muukadaulo wa Dacromet zomwe plating zachikhalidwe sizingafanane, zomwe zimakankhidwa mwachangu pamsika wapadziko lonse lapansi.Pambuyo pa zaka zoposa 20 zachitukuko ndi kukonzanso kosalekeza, teknoloji ya Dacromet tsopano yapanga dongosolo lathunthu la mankhwala pamwamba, lomwe limagwiritsidwa ntchito kwambiri pochiza zitsulo zazitsulo.Kampaniyi inakhazikitsa Nippon.Darro.shamrock (NDS) mu 1973 ndi Japan Oil & Fats Co., Ltd., ndipo inakhazikitsanso DACKAL ku Ulaya ndi France mu 1976. Anagawa msika wapadziko lonse m'misika inayi ikuluikulu: Asia Pacific, Europe, Africa ndi America.Woyang'anira dera limodzi ndikufunafuna zokonda zomwe zimafanana padziko lonse lapansi.Chifukwa chakuti kutentha kwapamwamba, kukalamba kwamadzimadzi okutira kumakhala kosavuta, kutentha kosungirako kwa Dacromet kupaka madzi kumayendetsedwa bwino pansi pa 10 ° C.Panthawi imodzimodziyo, pansi pa kuwala kwa dzuwa, madzi okutira ndi osavuta ku polymerize, metamorphose, komanso ngakhale kuchotsedwa, choncho ndi bwino kuusunga pamalo ozizira.Nthawi yosungiramo madzi opaka a Dacromet si yaitali kwambiri, chifukwa nthawi yayitali yosungiramo madzi osungira, pH mtengo udzakhala wapamwamba, zomwe zidzachititsa kuti madzi otsekemera akhale okalamba ndi kutayidwa.Zoyeserera zina zawonetsa kuti zinyalala pambuyo pokonza Dacromet wopanda chromium, madziwa amakhala masiku 30 pa 20 ° C, masiku 12 pa 30 ° C, ndi masiku 5 okha pa 40 ° C.Choncho, madzi opaka a Dacromet ayenera kukhalapo pansi pa kutentha kwapansi, kapena kutentha kwakukulu kumapangitsa kuti madzi otsekemera azikalamba.