Detailed Product Description

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

Design: in charge of our full-experiment designer­-Lion Ren, who has been in this field for 15years and held the position of design director of a Hong Kong company

Material selection: we selecte select high grade fine steel (P less than 0.0than 0.035 percent,S less than 0.030  percent)cold drawn steel which is in line with IS with ISO9001 ISO9001 international standard. Each steel material is strict selected with the surface neat ce neat and smooth, smooth, the separation anglion angle should be no less thaless than 45 degrees between cross rib and steel bar surface, the surface should nohould not cracnot crack at the bend parts after bent 180 degrees flgrees flexural centre diameter, andter, andter, and sr, and steel bar surfaar surfaar surfaar surface should not uld not crack , scar over or collapse.

Forging Technology: to force presrce pressure on the planchet by the metal forming machinermachinery (air forging hammer and mechanical press ) so as to make it plastic deformation to achieve tchieve the certaie certain forgeable pieces in different shape or size. Processes as belo as below:

Forging stock blanking, anking, forging forging stock heating, roll forging forging forging for blank, staank, stamp forgamp forging to ging to ging to ging to ceng to ceng to cerg to cerg to cerg to cerg to cerg to cerg to certain shape, trimme, trimming cut,ing 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 to wipe surface oxidation; the exterior appearance and hardness should be checked commonly

Welding Technol Technology: our lofting master draw the same picture as the design in 1:1 proportion with the product. Our past master joister jointing worker then welthen weld the ironthe iron products roducts alreads already bent to shape all together. The product should be level, straig, straight, smooth, andoth, andoth, and the and the arch should be smooth, and without tithout twist, and the flower mould should behould be smooth with the jointhe jointing has to be artisti artistic and firm. The rm. The welding line must be neat be neat and firm. Flfirm. Flower mould must be in proporn proportion with the same model numodel numbdel number number number number number number number snumber shumber shouber should be the sbe the same and coincide completely. Any workpiece cut by plasma cutting or not easy to polish must be pust be polishe polished before gang welding. Accessory pieces must be forged oforged or polished before bent in shnt in shape, then welded with main iron art structure. Any burr occurred after forged must be polished before bending. The grad distance must be less than 110mm by any gate, railing, staircase, handrail or iron window without any declare ofclare of special demanal demanal demands as per safety standards. Saards. Saards. Saards. Sample plate m plate must be made to be e to be c to be confirmed before large batch production. The size and jointing technology 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 wean be wean be welded all tod all together should be welded before hot galvanize and it is not allowed to weld after hot galvanize without any special situation. For hot galvanize products, weep hole should be opened from the private position of the tube to ensure air flow smooth for molten Zinc and acid wash. To prevent the 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 weld 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 best of all in this field, iron art decorrt decorrt decorrt decoratioecoratioecoratioecoratioecoration products are put into about 455 degrees Zinc bath with Zinc rare earth alloy and billet aluminum, is used 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 galvanizealvanize laanize 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 atmospheric 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 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&lthours

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