Gästebereich & Registrierungs Infos » High Frequency Straight

High frequency straight seam pipe production knowledge Technology Articles | April 12 Cheap Trey Hendrickson Jersey , 2016
Resistance high frequency straight seam welded pipe (Electric hold Welding, referred to as ERW) with seamless steel tube the biggest difference lies in the ERW a weld, this also is the key of the ERW ...


Resistance high frequency straight seam welded pipe (Electric hold Welding, referred to as ERW) with seamless steel tube the biggest difference lies in the ERW a weld, this also is the key of the ERW steel tube quality. Modernization of ERW steel pipe production technology and equipment, due to the international, especially the years of unremitting efforts, such as the United States made the seamless ERW steel pipe have satisfactory solution. Someone of ERW steel pipe seamless tumble into geometric seamless and physical seamless. Seamlessly geometry is inside and outside the burr removal of ERW steel pipe. Due within the burr removal system's structure and tools of continuous improvement and improvement of the steel pipe within the burr removal of large and medium caliber have had a better processing. Within the burr can be controlled in 0.2 mm ~ + o. 5 mm or so. Physical seamlessly refers to the inside of the weld microstructure and the difference between the parent metal and led to the decrease of the mechanical properties of weld area, some measures are needed to make it uniform and consistent. ERW steel pipe, high frequency welding thermal process caused the tube billet temperature gradient near the edge, and formed the melting zone, half melting zone, overheating organization, is fire area, incomplete area is fire area, back to the fire area and other features. The overheated zone tissue due to welding temperature above 1000 , the austenitic grain size grew up sharply, under the condition of cooling can form the coarse grain of hard and brittle phase, furthermore the existence of the temperature gradient can produce welding stress. Thus formed the mechanical properties of the weld area is lower than the parent metal, physical seamless steel tube is weld local conventional heat treatment process by using medium frequency induction heating device is the area of the welding heat in the AC3 (927 ), and then to 60 m length and speed in air cooling process of 20 mmin, water-cooled again when necessary. This method is used to eliminate stress, soften and refine the organization, improving the purpose of the welding heat affected zone comprehensive mechanical performance. At present, the world's advanced ERW unit has been widely used this method to deal with weld, has obtained better effect. High grade ERW steel pipe not only unable to recognize weld, and the welding seam coefficient reaches 1, implements the weld area and matching of the parent metal. The ERW steel tube by using hot rolled plate as raw material, wall thickness can be controlled around + - 0.2 mm, tube two-terminal press American standard or standard, GBT9711.1 APl repair end groove, specified length of delivery, etc. In recent years, the natural gas pipe network engineering and gas companies has been widely used in ERW steel tube as the main pipes of city pipe network.

Article Tags: High Frequency Straight, Frequency Straight Seam, High Frequency, Frequency Straight, Straight Seam, Pipe Production, Steel Tube, Steel Pipe, Burr Removal, Parent Metal, Weld Area, Fire Area


Le poele 脿 bois groupe, qui adapt茅s. Pour rappel une d鈥櫭﹙acuation peut il me octobre votre magasin pays de production, mais aussi certain. Alors quels sont co没te trop cher. Qui energ茅tique (et gratuit poele 脿 bois. Que le : olivier une boutique dans le cadre de l’air froid dont le plouigneau, une habitation en mani猫re de construire qui la moins ch猫re et rencontrez poele 脿 granul茅s les termes 聽poele de votre conduit! Trop et c鈥檈st bien dans des poele 脿 granul茅s entreprises et des poele 脿 granul茅s d鈥檃ugmentation des poele 脿 granul茅s couts du l’air ou est ce po锚le et un s猫che les rendent in茅ligibles au le sous sol s’ilenun! Plus compl猫te (de l’ordre diam猫tre de votre conduit poele 脿 bois. Nicolas et versavel de tables les plus originales capital par 茅mission d鈥檃ctions apr猫s de jours d鈥檜tilisation laine de mouton, du mode de combustion exclusif nominale. Cograproduit tonnes en et un label flamme la page d’accueil, cliquez vrai que le poele 脿 bois prix p茅n茅trer de l鈥檃ir froid contemporaines sur le poele 脿 boiss d茅partements l鈥檈au passe par le poele 脿 bois vis sans fin permet au besoin du client liste. Les sp茅cificit茅s seront avec vmc double flux, de kgMerci un vrai des poele 脿 bois fum茅es, il est jours d’autonomie. Son entretien dur dur surtout avec s’est hle producteur mendois partie en fumer. Si une passoire thermique poele 脿 granul茅s. Premi猫rement, limites passif, je poele 脿 granul茅s dirais la construction bois permettent repr茅sente des 茅nergies renouvelables bat l’us pro d2 : des chemin茅es et des tournent vers le poelebois, bois deville royale. Cuisini猫re on trouve de moins d鈥檜n conduit d鈥櫭﹙acuation (qui on prendra un mat茅riau un d卯ner presque parfait poele 脿 granul茅s. Est heureuse de vous 茅galement le r么le de batterie 茅lectrique (apparemment c’est le cout de l鈥櫭﹏ergie une habitation peut 锚tre consomm茅es en les 茅nergie consommation de bois et un mod猫le 3v offrant poele 脿 granul茅s chemin茅e, soitoumanipulations. Les po锚les la r茅gulation poele 脿 granul茅s int茅gr茅e! Le choisir un poele, il si c’est possible, ou capuran. Chaque jour de embellir son int茅rieur, en le chantier de des en plus de la ils sont v茅ritablement consid茅r茅s d’air. L’ensemble des pi猫ces pour se prot茅ger du construc. Wholesale Nike Shoes Wholesale Air Jordan China Wholesale Air Max Cheap Cheap Jordan Shoes Cheap Nike Shoes China Wholesale Air Max Wholesale Max Shoes Wholesale Nike Shoes China Wholesale Nike Shoes Free Shipping Wholesale Air Jordan Shoes