Seamless steel pipe is an economic cross-section steel material that plays a very important role in the national economy. It is widely used in various departments such as petroleum, chemical industry, boilers, power plants, ships, machinery manufacturing, automobiles, aviation, aerospace, energy, geology, construction, etc Divided by section shape: circular section pipe, irregular section pipe
② Classified by material: carbon steel pipe, alloy steel pipe, stainless steel pipe, composite pipe
③ Classified by connection method: threaded connection pipe, welded pipe
④ According to production methods: hot rolled (extruded, topped, expanded) pipes, cold rolled (drawn) pipes
⑤ Classified by purpose: boiler pipes, oil well pipes, pipeline pipes, structural pipes, fertilizer pipes

Hot dip galvanized steel wire(hot-dipgalvanizedsteelwire)isa variety of high qualitycarbon steelorhighcarbon steelpickling,phosphating,drawing,and thenzinc(hot-dipplatingorcold).

So hot dip galvanizedandgalvanized ironwhat is the difference?

Cold galvanizedalso called electro-galvanized,is the use ofelectrolyticequipmentfittingsby removingoil,acid picklingsolution,theninto the composition of the zinc salt,anodeand connectedelectrolytic equipment,placingzincinpipeconnected to theopposite,anodeelectrolytic device power is turned on,thecurrentfrom the anode to thecathodeof thedirectional movementwill beinpipedepositing a layer of zincplating,coolingpipe is first processedgalvanized.Cold zinc(Galvanized):isthe zincplatingmetal appearancegraduallythrough the currentdirectionin the plating tank,productionspeed is slow,uniform coating,thin,usually only3-15 micron,bright appearance,smooth,beautiful degreehigh,poor corrosion resistance,general a few months willrust.

Galvanizedby the more ancient hotplating method development,since 1836 the French to hotdip galvanizing applied in industry since,has been one hundred and seventy years of history.However,hot dip galvanizingindustryin recent thirty years,with the rapid development ofcold rolled steel striphas been developed on a large scale.

Hot-dip galvanizedorhot-dip galvanizedsteel workpiece,theafter degreasing,rust,showingno pollution,infiltration ofsurface,immediatelyimmersed inthebathof zincmeltingofheating,

Method of forminga layer of zinccoatingon the surface of workpiece.Cold galvanizingisthe sameafteroil removal,in addition to lure,showingno pollution,infiltration of theworkpiecehang into thecathodeplating tankdedicated,zincanode.DC power supply is switched on,the zinc ionon the anodeto the cathodemigration,anddischargeat the cathode,theplatinglayeronhot dip galvanizedzinc layermethod.

Hot dip galvanizedcoatingis thick,generally 30-60microns,highcorrosion resistancecoating.Iron and steelis suitable for outdoorwork

"I declare that the 20-high rolling mill project of the silicon steel department of WISCO is officially put into operation"! With the order of Ao Aiguo, General Manager and Deputy Secretary of the Party Committee of Wuhan Iron and Steel Co., Ltd., the new 20-high mill of the Silicon Steel Department was officially put into operation.
On the morning of February 14, the launching ceremony of the new 20-high Sendzimir mill project of the Silicon Steel Department of Wuhan Iron and Steel Co., Ltd. was held at the site of the third branch.
The new 20-high rolling mill of the Silicon Steel Department is a key project in the development planning of Wuhan Iron and Steel Co., Ltd. Silicon Steel. The rolling mill has a comprehensive production capacity of wide high-end oriented silicon steel and non-oriented high grade, covering all the thickness requirements of the current market for silicon steel products. Compared with the existing rolling mills of the same kind, the maximum rolling speed of the new 20-high rolling mill is 25% faster, the thinnest rolling thickness is 20% thinner, and the thinnest product is like ordinary printing paper. The production of the new rolling mill provides strong support for the Silicon Steel Department to further optimize the product structure, strengthen the product profitability and enhance market competitiveness.
The construction of the rolling mill was started on September 15, 2021. During the construction period, the participating units overcame the impact of the epidemic, cooperated sincerely, and managed scientifically to ensure that the project was not hindered and the progress was not out of schedule. The hoisting of the main workshop of the rolling mill was completed on July 20, 2022, 10 days ahead of the planned time. On January 18 this year, the hot load commissioning phase began. On January 28, the first coil of steel was successfully rolled. The whole project lasted 16 months, The construction period is 45 days ahead of schedule.