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needle valve manufacturer

Categories：	Fabric / Polyester Fabric
Material & Specifications：	2323
Manufacturing methods：	Knit fabric
Weight(g/㎡)：	<80
Width(cm)：	110-120
Usage：	Apparel

Contact Infomation

needle valve manufacturer

Tel:	86-324-3232323
Fax :
Country/Region :	Albania
Address :	Xi'an,Shaanxi
Contact :	Lohuizen Danilio ()

Detailed Product Description

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Description: Stainless steel pipe used for decoration and industrial life, many people on the market for making stair handrail, protective Windows, railings, furniture, etc. Accounted for about 16% 8% of the total amount of steel a, its application range is very wide in the national economy. And because the steel pipe has a hollow cross section which is suitable for liquid, gas, and solid pipeline; At the same time, compared with the same weight of round steel, steel pipe section flexural torsional strength coefficient is big, big, so all kinds of needle valve manufacturer mechanical and architectural structure have become the important material.
Company mainly produces inventory sales 304, TP304, 304 l, 321, 316, TP316L TP321, thick wall stainless steel seamless tube, stainless steel seamless steel tube TP347H boiler, 13296 stainless steel heat exchange tube, S32205 stainless steel seamless tube, S32750/2507 stainless steel seamless tube, non-standard thick wall pipe and pipe fittings. Products are widely used in petroleum, chemical, natural gas, electric power equipment manufacturing and mechanical equipment manufacturing and other industries. The company has a model for GZK42320 digital-control sawing, cutting, generation processing retail product size can be zero, big zero cut 630 mm, 80 mm thick wall thickness. 304, TP304, 304 l, 321, 316, TP316L TP321, thick wall stainless steel pipe perennial inventory, complete specifications, low prices, quality assurance, can scale cutting.
Stainless steel pipe now more and more widely used, due to its good corrosion resistance has played a vital role in engineering construction, in the process of production we need a solid solution for stainless steel tube processing, the main purpose is to obtain certain martensite increase the hardness of products, let's look at the solution of the stainless steel tube processing:
(1) when the middle follow after solid solution treatment and then heated to 760 + 15 ℃, insulation 90 min, due to Cr23C6 carbide precipitation from austenite and reduce the carbon in the 904 l austenitic stainless steel pipe and alloy element content, Ms point by cooling to room temperature to 70 ℃ and then get martensite + alpha ferrite + residual austenite, the residual austenite in 510 ℃ ageing followed up.
(2) high temperature adjustment and cryogenic treatment solution first heated to 950 ℃ heat preservation after 90 min, due to the increased Ms points, cooling to room temperature to obtain a small amount of martensite; Then through - 70 ℃ after cold treatment insulation 8 h is a certain amount of martensite can be obtained.
(3) solid solution treatment after cold deformation method, cold deformation at room temperature, 904 l seamless tube formation during cold deformation martensite and the deformation and the number of element of 904 l stainless steel tube.
Stainless steel tube used in our life, or more, in the process of production is 12 needle valve need to be polished, usually has the following three types of different polishing methods and their respective advantages and operating steps have relations, so in choosing a polishing method or note, then we simply understand the several different ways of polishing of stainless steel pipe.
1, mechanical polishing, the advantages of this approach is actually in the processed products of flatness is better, has a high brightness. 2, the chemical polishing: it has the advantage of processing equipment investment is less, production efficiency is high anticorrosion performance. 3, electrochemical polishing: it has the advantage of bright luster to keep long and stable process, less pollution, low cost, good anticorrosion.

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