Detailed Product Description

wrought iron staircase ,staircase ,iron staircas

Iron products have strict manufacture processes in designs, materia materia materialmaterial selection and manufacture craft

De;p>Design: in charge of our full-experiment designer­-Lion Ren, who has bho has been in this field s field s field for 15years and held the eld the eld the positionpositionposition of design director of a Hong Kong company

Material selection: we select high grade fine steel (P less than 0.035 percent,S less than 0.030  percent)cold drawn steel which is in lins in line with ISO9001 international standard. Each st Each steel material is strict selected with the surfahe surface surface surface surface surface neaface neaface neat ce neat and smo and smo and smooth, thooth, the separation angle n angle shoulle should be no less than 45 degree5 degrees degrees degrees betwees between cross rib and steel d steel bar surface, the surface should not crack at the bend parts after bent 180 degrees flexural cenural centre diameter, and steel bar surface should not crack , scar over or collapse.

Forging Technology: to forc to force pressure onssure onssure onssure on the planchet by the met the metal forming machinery (air forging hammer and mechanicalchanical press ) so as to make it plastic deformationormation to achieve the certain fortain forgeable pieable pieces in different shape or size. Process Processesrocessesrocesses as belo as below:

Fo;p>Forging stock blanking, forging stoging stock heating, roll forging for blank, stamp forging to certain shape, trimming cut, ig cut, intermediate inspection, inspection of the size and surface blemish of the forging pieces. Forging heat-treatment to remove forging stress and improve metal machinability ;  sweeping is used is used to wipe to wipe to wipe to wipe surface surface oxidation; the exterior appearance and hardness should be checked commonlycommonly

Welding Technology:hnology: our lofting masting master drawter draw the raw the same picture as the design in 1:1 proport proportion with the product. Our past master jointing worker then weld the iron productsproducts already bent to shape all together. Theher. The product should be level, straight, smooth, smooth, and the arch should be suld be smooth, and without twist, and the flowthe flower mould mould shouuld should be smooth with the jointing has to be artistic and firmand firmand firm. The wm. The wm. The we. The welding line must be neat be neat and firm. Flower mould must be in proportion with the same model number should be ould be the same and coincide completely. Any workpiece cut by plasma cutting or not easy to polish must be polished before gang welding. Acceng. Acceng. Accessory pieces must be forged or polished before bent in shape, then welded with main iron art structure. Any burr occurred after forged mforged mforged must be polishedpolished before bending. The gg. The grad distance must be less than 110mm by any gate, railing, staircase, handra, handra, handrail or iron windoon windoon window wwindow without any declare of special special demands as per safety standards. Sample plate must be made to be confirmed before large batch production. The size and jointing technology of iroy of iron art products should be tested by quality inspector. Manufacture size and the size required by design are allowed to make a deviation of 1:1000 according to different products.

Hot galvanize technology: every piece can be welded welded all ted all ted all together should be welded beelded before hot galvanize and it is not allowed to weld afteeld afteeld after hot galvanize without any special situation. For hot galvanize products, weep hole shohole should be opened from the private posvate position of the tube to ensure air flow smooth for molten Zinc and acid wash. To prevent the sealihe sealing of the gate go out of shape, the sealing must be welded after hot galvanize. All products should open up an angle, the two angles welded together in stead of welding directly. The thickness of cold galvanizing layer is 5-15um, can keep the product out of rust for more than 2 years. But hot galvanize technology, the gy, the best oe best of all in this field, iron art decoration products are put into aboutto about 455 degrees Zinc bath with Zinc rare earth alloy and billet aluminum, is used by ourd by our Shou Jee iron art decoration corporation. The thickness of the hot galvanize layer is above 65μm, even come up to 100μm. The advantages of hot galvanize is that it has good covering power, dense galvanize layer and without any organic matter. The weather-resistant mechanism of Zinc includes mechanical protection and electrochemical protection: the surface of hot galvanize layer has ZnO, Zn(OH)2 , ZnCO3-2Zn(OH)2-H2O in atmospheatmospheric corrosion condition, which slow down the rusty of Zinc to a certain extent. This protective layer called white rust can form a new layer while destroyed.  Weather-resistant power to base metallic iron of hot galvanize technology is much better than that of cold galvanizing, and hot galvanizing can keep the products out of rust over 50 years.

Painting technology: gloss of the painting divided into: light, matte, semi-matte, light divided into: touches, semiflat, dead luster. The brighter the paintings are, the more ageing-resistant they are. The drying functions are divided into surface drying and hard drying with suitable moisture of 65 percent. Each kind of painting makes different drying time, to ensure the strength of adhesive force and to make it look the same as new, we control the drying time of following:

Nitryl lacquer basic painting surface drying time is 0.2 hour, hard dry time is 1 hour

Bi-component epoxy primer painting surface drying time is 0.5 hour, hard dry time is 24 hours

Bi-component epoxy zinc rich primer painting surface drying time is 0.5 hour, hard dry time is 8 to 10 hours

Acrylic dilute acid air dry painting surface drying time is 0.5 hour, hard dry time is 4 hours

Bi-component acrylic finish coat surface drying time is 0.5 hour, hard dry time is 8hours

Alcohol acid gulf red finish coat surface drying time is 2 hour, hard dry time is 24 hours

Red lead gulf red finish coat surface drying time is 4 hour, hard dry time is 24 hours