Вытворца змяшальнікаў VIGA 
Нядаўна, the Nanjing Municipal Bureau of Quality Supervision released the results of the 2017 residents’ home improvement products quality spot check, з удзелам кранаў, мыйкі з нержавеючай сталі, bathroom brackets and paint-free boards. The pass rate of faucets is the lowest at 67.5%, and the pass rate of faucets priced at 100 yuan and below is only 14.3%.
Некваліфікаваная хуткасць націскаў 20$ is as high as 85.7%
Раней, the Nanjing Municipal Bureau of Quality and Technical Supervision commissioned the Nanjing Product Quality Supervision and Inspection Institute to conduct random inspections on 40 batches of faucet products sold by production enterprises, circulation areas and e-commerce platforms in Nanjing. Пасля агляду, 27 batches were qualified and 13 batches were unqualified, са хуткасцю праходжання 67.5%.
Nanjing Quality Supervision Bureau classified the test results according to the product source and price range, and the results were eye-catching.
А 40 batches of tap products sampled this time were 20 партыі, 19 партыі і 1 batch sampled from physical stores, Платформы электроннай камерцыі і вытворчыя кампаніі, адпаведна. Сярод іх, the qualification rate of physical store products is the lowest at 55%; the qualification rate of e-commerce platform products is 78.9%; and the qualification rate of production enterprises is 100%.
З пункту гледжання коштаў на прадукт, хуткасць праходжання прадукцыі 70$ and above is 100% (unqualified rate 0%), and the pass rate of products between 20$ і 70$ ці 85.7% (unqualified rate 14.3%). The pass rate of products between 20$ і 40$ ці 62.5% (the unqualified rate is 37.5%), і хуткасць праходжання прадукцыі 100 Юань і знізу ёсць 14.3% (the unqualified rate is 85.7%).
2 batches of faucet metal pollutants precipitation exceeded the standard
This sampling inspection was carried out in accordance with GB 18145-2014 “Керамічны ліст ўшчыльняючы кран” і ГБ 25501-2010 “Limited Value of Faucet Water Efficiency and Water Efficiency Grade”. Сярод 13 Партыі некваліфікаваных прадуктаў, the unqualified items mainly related to surface corrosion resistance, Ацэнка эфектыўнасці вады, Раўнамернасць патоку і матэрыялы, among which 2 batches of products were detected to exceed the standard of metal pollutant precipitation (кіраваць).
Акрамя таго, this sampling inspection also refers to the standard of QB/T 1334-2013 “General Technical Conditions for Faucets”, and carried out the sealing performance of the faucet after freezing for 4 гадзіны, 8 гадзіны, 12 гадзіны, і 24 hours at a low temperature of -10°C. Risk monitoring. Пасля агляду, 33 batches of faucets meet the standard requirements, with a compliance rate of 82.5%.
Аналіз элементаў інспекцыі
①Flow uniformity and water efficiency grade
Flow uniformity and water efficiency grade Among the samples sampled this time, 1 batch of water efficiency grade was unqualified, і хуткасць праходжання гэтага праекта была 97.5%; 3 batches of flow uniformity were unqualified, і хуткасць праходжання гэтага праекта была 92.5%. These two items are the requirements for the energy efficiency of the water tap, and the uniformity of the flow is the prerequisite for evaluating the water efficiency grade of the tap. Excessive flow of water nozzles will cause waste of water resources, which is not conducive to the implementation of my country’s energy conservation and emission reduction policies.
Устойлівасць да карозіі
Among the samples sampled this time, 12 batches of surface corrosion resistance were unqualified, і хуткасць праходжання гэтага праекта была 70%. Products with unqualified surface corrosion resistance are prone to rust during use, which will not provide protection and affect the appearance and use of the product. The surface corrosion resistance of the faucet not only depends on the company’s electroplating process, але таксама ўключае ў сябе розныя аспекты, такія як матэрыял, працэс ліцця, Паліроўка і папярэдняя апрацоўка.
③Precipitation of metal pollutants
Among the samples sampled this time, 2 batches of metal contaminants were unqualified, і хуткасць праходжання гэтага праекта была 95%. Ападкі металічных забруджвальных рэчываў звязана са здароўем чалавека, асабліва назапашванне свінцу ў чалавечым целе, which can cause long-term health risks in the human body and affect the normal physiological functions of the human body. The low-grade copper grades of faucet products and the substandard production process of the enterprise are all causes of excessive precipitation of metal pollutants.
(Unqualified samples precipitated by gold contaminants)
④ Матэрыял
Among the samples sampled this time, 7 batches of materials were unqualified, і хуткасць праходжання гэтага праекта была 82.5%. Некаторыя прадукты выкарыстоўваюць цынкавы сплаў, a corrosive material whose price is only 1/3 of copper alloy. Гэты матэрыял лёгка раз'ядаць, што не толькі ўплывае на знешні выгляд, but also reduces the strength of the faucet, causing water leakage and cracking after a period of use. У параўнанні з меднымі сплавамі, zinc alloys are cheap and easy to process. In order to control costs and reduce processing links, some companies use zinc alloys instead of copper alloys to make greater profits.
⑤ Risk items (Тэст тэмпературы)
This sampling conducted a temperature test, гэта значыць, freezing the water nozzle at -10°C for 4 гадзіны, 8 гадзіны, 12 гадзіны, і 24 hours to test the sealing performance. Пасля тэставання, сярод 40 batches of taps sampled this time, Усяго 7 batches of faucets have leaked in a low temperature environment.
У цяперашні час, there is no corresponding national standard for the freezing temperature value of faucets. Пры звычайных абставінах, the faucet will not be frozen and cracked at a few degrees below zero, but after low-temperature freezing, due to the expansion and condensation of water in the valve core, the valve core will be squeezed and stressed. Будзе ўцечка пры падключэнні. Для таго, каб зэканоміць выдаткі, some manufacturers use poor-quality brass as the casting material for the faucet. The ductility of the metal is greatly reduced, and it is easy to freeze at low temperatures and almost breaks when it is knocked.
(Sample with unqualified freeze-thaw sealing performance)
Савет спажыўцоў
①Avoid buying zinc alloy faucets
Zinc alloy is a corrosive material, so you should avoid this type of product when purchasing a faucet. Яго можна адрозніць у адпаведнасці з унутранай паражнінай прадукту. Copper materials are generally castings, and the inner wall of the product is not very flat, while zinc alloys are injection-milled, the inner wall will be very smooth, and the inner wall has obvious separation lines. If possible, you can grind away the sample in an inconspicuous place to see the color. The color of zinc alloy is white, while copper alloy is yellow.
②Avoid buying low-cost faucets
The unqualified rate of faucets below 100 Юань такі ж высокі, як 85.7%, and many items that have a greater impact on consumers’ здароўе, such as the precipitation of materials and metal pollutants, are not recommended.
③Look at the surface
Visually check whether the plating surface of the faucet is evenly glossy, and pay attention to whether there are any defects such as peeling, трэск, burning, bottoming, лупіна, dark spots and obvious pitting. The sprayed surface structure should be fine, smooth and uniform, without defects such as sagging and bottoming. There is no burr or grit to the hand.
④Look at the thread
The pipe thread of the faucet is connected with the connecting hose or pipe. Пры куплі, visually check the thread surface for defects such as dents and broken teeth. Pay special attention to the effective length of the pipe thread.
⑤ Паглядзіце на пачуццё
Try turning the handle up, уніз, левы, і правільна. If it feels light and does not feel blocking, the valve core is better. The main parts of a good quality faucet are made of brass. Звярніце ўвагу на адрозненне прадуктаў, якія выкарыстоўваюць сплаўныя матэрыялы і інжынерныя пластмасы, чыя якасць і тэрмін службы адносна дрэнныя.
⑥ Water saving
The faucet with a bubbler saves water better. Feel the water flow with your hand when purchasing. Мяккі паток вады і насычанае пено (Змест бурбалкі патоку вады) indicate that the bubbler is of better quality.