Food grade corrosion resistant ability of stainless steel tube and stainless steel tube and surface treatment and the use of fluid medium has a great relationship

by:Xuanyuan     2020-07-25

food grade corrosion resistant ability of stainless steel tube and stainless steel tube and surface treatment and the use of fluid medium has a great relationship, by definition, austenitic stainless steel containing high chromium and nickel, some containing molybdenum ( Such as 316 l00cr17ni14mo2) , titanium, etc. , generally contains 10. 5% of chromium has a good corrosion resistant ability. Corrosion protective performance because of the rich chromium passivation, the result of the passivation layer is usually 3 - 5 nm thick, as thick as or equivalent to 15 layer atoms. Passivation layer is in the oxidation of chromium and iron oxidation - Formed in the process of reduction reaction, if the passivation layer destruction, and will quickly form new passivation and/with electrochemical corrosion, there will be a deep pitting and intergranular corrosion of stainless steel. Passivation layer corrosion resistant ability related to contain chemical composition content in stainless steel.

food grade stainless steel tube surface analysis: auger electric energy spectrum ( AES) Method and X-ray energy spectrum of light ( SPS) Method can be used for the stainless steel surface analysis, which, in turn, determine the stainless steel pipe internal and external surface corrosion resistance ability. AES method for the analysis of the small diameter, can be less than 20 nm, its original function as recognition elements. XPS method of analysis of straight yao about 10 & mu; M, is mainly used to determine the near surface chemical state of element. By AES and XPS detectors of mechanical polishing has been exposed to the atmosphere of 316 stainless steel surface scanning results show that the analysis on the surface of the stainless steel hose total depth of the most typical of 15 nm, and provide the composition of the passivation layer, thickness and its corrosion resistant ability, etc.

• WH00229 hose

& bull; By Swiss SGS group ( Quality and technical supervision of China standards technology development company joint venture) Quality supervision and inspection institute, guangzhou, zhuhai entry-exit inspection and quarantine bureau, in guizhou province product quality supervision and inspection.

• Not easy to get squashed: high temperature ( 600℃) Under the condition of delivery, vacuum conveying OK.

• Food grade hose pipe body is in line with the FDA 21 CFR 177. 2600 and 178. 2010, the EC regulation 2002/72 / EC, including 2007/19 / EC of recent changes to regulations, eu rules XXXIX BFRS and comply with FDA specifications products: safe/safely used for food purposes, quality food sanitary hoses, 229 series hose production, according to GB/T 21928 - 2008 'food plastic packaging materials on the determination of phthalates in' method to carry on the strict test, all GB9685 - 2008 the food containers and packaging materials used additives health standard 'the levels of phthalates in limit) ; Don't break down the smell and taste; Smooth wall non-stick water; Can be high temperature disinfection and high pressure sterilization; High heat/cold resistance: can be used to - Wide range of 100 ~ 600 ℃.

• Application: all kinds of food/potable water transfer hose, super pure liquid transmission, liquor ( Maotai-flavor, luzhou-flavor, qing scent, rice, chicken flavor, medicine scent, scent and scent, tempting scent, sesame, loosened scent, scent fragrant scent) Red wine, wine, rice wine, beer and other alcoholic beverages with, transmission disinfection liquid filling and transport, transport food fruit juice beverage and dairy products; Applicable to beer, food, brewing, beverage, dairy products, spices, monosodium glutamate, cosmetics, toothpaste, fine chemical, pharmaceutical and health care and biotechnology industries such as food fluid absorption, contains 50% alcohol concentration liquid pressure and vacuum extraction.

• Feature: the antibacterial and hydrolysis, good chemical resistance. The wear resistance;

• Structure: the inner wall of the tube for food grade high precision austenite size stainless steel corrugated pipe ( 1Cr18Ni9Ti,0Cr19Ni9, 00Cr17Ni14Mo2 ) Can, anti-static; Wall: food grade high precision stainless steel net, 1Cr18Ni9Ti,0Cr19Ni9, 00Cr17Ni14Mo2 ) ,, wall smooth corrugated mirror processing; Wall thick, resistance to high pressure, corrosion resistant performance is good.

• Quality control program after the record;

• According to the requirement to establish effective packaging;

• Usually can use the length, color, 316 l stainless steel sanitary fittings, hose assembly and packing

& bull; Note: other wall thickness, length, specifications, can be customized;

• Food grade stainless steel refers to conform to the law of the People's Republic of China standard containers/stainless steel tableware hygiene standards 'GB - 9684 88 stainless steel material, its lead, chromium content in general stainless steel is much lower.

• Index: food grade stainless steel refers to food machinery parts that come in direct contact with food, meet the food safety requirements. Because, the food production process to use a lot of acid and alkali, with stainless steel; Stainless steel and stainless steel containing chromium, unqualified, dissolution for price of chromium and toxic; And required to limit the variety of metal impurity elements such as lead, cadmium content. • All kinds of food storage containers, and food processing machinery should choose austenite stainless steel (size 1Cr18Ni9Ti,0Cr19Ni9, 1Cr18Ni9,00Cr17Ni14Mo2) 。

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