Чаро сатҳи нокифоягии тазоҳаҳо?

It is reported that Shanghai has conducted random inspections on the quality of faucets, and the unqualified rate has reached 40%. What causes such a low pass rate of faucets?

This is firstly caused by technological reasons. Дар айни ҳол, many daily necessities are made of copper, оҳан, stainless steel and other materials. Ин маводҳо дорои унсурҳои металлии вазнин мебошанд. If they are not handled properly, they may exceed the standard.

Барои намуна, the main elements of stainless steel include manganese, хром, ва никел. In order to maintain corrosion resistance, пӯлоди зангногир бояд миқдори муайяни хром дошта бошад. If the chromium is handled improperly, it may cause excessive chromium. In the same way, improper handling of manganese may lead to excessive manganese.

The copper alloy used to make faucets contains traces of metal elements such as iron, алюминий, ва рохбарй мекунад. Агар пешрав набошад, хангоми рехтагарй ташкил кардан душвор аст. Мазмуни пешқадам ҳамон қадар зиёдтар аст, the easier the casting process. Бинобар ин, copper faucets on the market generally contain a certain amount of lead. If the factory does not do a good job of removing lead during manufacturing, it will cause excessive lead.

Сабаби дигар он аст, ки технология ва таҷҳизоти ширкат кӯҳна шудааст, causing trace elements to be uncontrollable. Одатан, вакте ки тачхизоти нав бори аввал дар истехсолот чорй карда мешавад, махсулоти он сифатнок аст, вале вакте ки тачхизот муддати дароз истифода бурда мешавад, the products will exceed the trace elements. This situation cannot be repaired from a technical point of view and can only be replaced with new equipment, but some factories continue to use it to save money. This is a technical problem and also a cost problem.

A seller of bathroom equipment told reporters that most faucets on the market now have copper cores, but the quality varies. Faucets from small manufacturers and cheaper prices are likely to exceed the lead. Сабаб дар он аст, ки баъзе истеҳсолкунандагон барои назорат кардани хароҷот хӯлаҳои стандартии биринҷӣ намехаранд, but purchase cheap lead brass as raw materials from small workshops. This kind of lead brass tends to have a high lead content, but the price is only half of the brass alloy.

Чӣ гуна кранҳои пастсифатро аз нарх фарқ кардан мумкин аст? An industry insider told reporters that a copper faucet with formal craftsmanship should cost more than one hundred yuan, while a faucet worth tens of yuan is likely to use lead brass.

“Дар муқоиса бо маҳсулоти калон, faucets worth tens of yuan are really not worth spending so much time and energy to choose one by one, ва ба масъалаи аз хад зиёд будани суръ-ат эътибор намедиханд.” A Shanghai citizen who is decorating his home told reporters.

Дар ин маврид, some people in the industry said that domestic consumers did not pay enough attention to the quality and safety of faucets, which also gave many unqualified and low-quality faucets an opportunity.