Производител на кранове VIGA 
Наскоро, the Nanjing Municipal Quality Supervision Bureau released the results of the 2017 random inspection of the quality of household furnishings, включващи кранове, мивки от неръждаема стомана, bathroom brackets and paint-free plates. The passing rate of faucets is the lowest at 67.5%, of which the passing rate of faucets priced at RMB 100 and below is only 14.3%.
Неквалифицираният процент на кранове под 100 юана е толкова висока, колкото 85.7%
Prior to this, the Nanjing Municipal Quality and Technical Supervision Bureau entrusted the Nanjing Product Quality Supervision and Inspection Institute to conduct a random inspection of 40 batches of spout products sold in Nanjing’s production enterprises, circulation areas and e-commerce platforms. След проверка, 27 batches passed and 13 Партидите не успяха, с проходимост от 67.5%.
Nanjing Quality Supervision Bureau has classified the test results based on the product source and price range, and the results are eye-catching.
The 40 batches of faucet products in this random inspection were sampled from physical stores, платформи за електронна търговия и производствени компании, respectively for 20 партиди, 19 партиди и 1 batch. Сред тях, the physical store product qualification rate is the lowest, 55%; the e-commerce platform product qualification rate is 78.9%; the production enterprise product qualification rate is 100%.
От гледна точка на цените на продуктите, пропускателната способност на продуктите на 400 yuan and above is 100% (failure rate 0%), the pass rate of products between 200 yuan and 400 yuan is 85.7% (failure rate 14.3%), 100 yuan to The pass rate of products between 200 yuan is 62.5% (unqualified rate is 37.5%), и пропускателната способност на продуктите на 100 юана и по-долу е 14.3% (unqualified rate is 85.7%).
2 batches of metal contaminants in the water nozzle have exceeded the standard
This sampling inspection was conducted in accordance with GB 18145-2014 “Ceramic Sheet Sealed Water Nozzle” и GB 25501-2010 “Liquid Water Use Efficiency Limit Value and Water Use Efficiency Grade”. Сред 13 партиди неквалифицирани продукти, the unqualified items mainly involve surface corrosion resistance, степен на водна ефективност, равномерност на потока и материали. Сред тях, the detection of metal contaminants (олово) in two batches of products exceeded the standard.
В допълнение, the sampling inspection also referred to the QB / T 1334-2013 “General Specifications for Water Spouts” стандарт, and the sealing performance of the spouts was frozen at -10 ℃ for 4 часове, 8 часове, 12 часове, и 24 hours Risk monitoring. След проверка, 33 batches of water nozzles meet the standard requirements, and the compliance rate is 82.5%.
Анализ на елемента за проверка
① Flow uniformity and water efficiency grade
Flow uniformity and water efficiency grade In the sample of this random inspection, one batch of water efficiency grade failed, the project pass rate was 97.5%; three batches of flow uniformity failed, the project pass rate was 92.5%. These two items are requirements for the energy efficiency of the water nozzle, and the uniformity of the flow rate is the prerequisite for evaluating the water efficiency level of the nozzle. Excessive flow rate of water nozzles will cause waste of water resources, which is not conducive to the implementation of China’s energy conservation and emission reduction policies.
②Повърхностна устойчивост на корозия
Among the samples of this random inspection, 12 batches of surface corrosion resistance failed, и процентът на преминаване на този проект беше 70%. Products with unsatisfactory corrosion resistance on the surface are prone to rust during use and do not provide protection, affecting the aesthetics and use of the product. The corrosion resistance of the surface of the water nozzle not only depends on the electroplating process of the enterprise, но също така включва различни аспекти като материал, процес на леене, полиране и предварителна обработка.
③ Precipitation of metal contaminants
In the sample of this sampling, 2 batches of metal contaminants were deposited unqualified. The qualified rate of this project was 95%. Утаяването на метални замърсители е свързано с човешкото здраве, особено натрупването на олово в човешкото тяло, which can cause long-term health risks and affect the normal physiological functions of the human body. The copper grade of the spout product is low, and the production process of the enterprise does not meet the standard, which is the cause of the excessive precipitation of metal contaminants.
(Unqualified samples of gold contaminant precipitation)
④Материал
Among the samples of this random inspection, 7 batches of materials failed, and the pass rate of the project was 82.5%. Някои продукти използват цинкова сплав, which is a corrosive material that is only 1/3 of the copper alloy. Този материал е лесен за корозия, което се отразява не само на външния вид, but also reduces the strength of the nozzle, and leaks and cracks after a period of use. В сравнение с медни сплави, zinc alloys are low in price and easy to form. Some companies use zinc alloys to replace copper alloys in order to control costs and reduce processing links, in order to obtain greater profits.
⑤Risk items (температурен тест)
This spot test carried out a temperature test, това е, the sealing performance was tested after freezing the water nozzle at -10 ℃ for 4 часове, 8 часове, 12 часове, и 24 часове. След тестване, сред 40 batches of taps in this random inspection, общо 7 batches showed leakage under low temperature environment.
В момента, there is no corresponding national standard for the temperature resistance value of the faucet. При нормални обстоятелства, the water nozzle will not be frozen and cracked at a few degrees below zero, but after freezing at low temperature, the water in the spool expands and condenses into ice, which will cause squeezing force on the spool. Ще има изтичане на връзката. С цел спестяване на разходи, some production enterprises use poor quality brass as the casting material of the faucet. The metal ductility is greatly reduced, and it is easy to freeze and break at a low temperature.
(Sample with unsatisfactory freeze-thaw sealing performance)
Съвети за потребителите
① Avoid buying zinc alloy faucets
Zinc alloys are highly corrosive materials, and such products should be avoided first when purchasing faucets. Може да се разграничи според вътрешната кухина на продукта. The copper material is generally a casting. The flatness of the inner wall of the product is not very good. The zinc alloy is obtained by injection grinding. The inner wall will be very smooth and the inner wall will have obvious separation lines. Under conditional conditions, the color of the zinc alloy may be white, while the copper alloy may be yellow.
② Avoid buying low-cost faucets
The unqualified rate of faucets under 100 юана е толкова висока, колкото 85.7%, and it involves more materials, metal contaminants and other items that have a greater impact on consumer health, so it is not recommended to buy.
③ Look at the surface
Visually inspect whether the electroplated surface of the spout is uniformly lustrous, and pay attention to whether there are defects such as peeling, напукване, scorching, exposed bottom, пилинг, black spots and obvious pitting. The surface structure of the sprayed surface should be fine, smooth and uniform without defects such as sagging and exposed bottom. No burr and grit feeling on the hand.
④ Look at the thread
The pipe thread of the water nozzle is connected with the connecting hose or pipe. При закупуване, visually inspect the thread surface for dents, broken teeth and other defects, especially pay attention to the effective length of the pipe thread.
⑤ Вижте усещането
You can try turning the handle up, надолу, вляво, И правилно. If it feels light and there is no blockage, it means that the valve core is better. The main parts of a good quality spout are made of brass. Обърнете внимание, за да разграничите продуктите, които използват сплави и инженерни пластмаси, чието качество и експлоатационен живот са относително лоши.
⑥Water saving
The faucet with a bubbler is better for saving water. При закупуване, you can feel the flow of water by touching it with your hands. Мек воден поток и обилно разпенване (воден поток съдържание на мехурчета) indicate that the bubbler is of good quality.
