Detailed Product Description
copper art ,wrought copper ,copper art product
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 select high grade fine steel (P less than 0.035 perce35 percent,S leent,S leent,S less than 0.030 percent)cold drawn steel which is in line with ISO9001 internatinternational standard. Each steel material is strict selected with td with the surface neat and smooth, the separation angle should be no less than 45 degrees between cross rib and steel bar surface, the surface should not crack at the bend pa bend parts after bent 180 dnt 180 degrees flerees flexural centre diameter, and steel bar surfaar surface shoulde should should not crack , scar over or collapse.
Forging Technology: to force pressure on the planchet by the metal forming machinery (air forging hammer and mechanical press ) so as to make it plastic deformation to achieve the certain forgeable pieces in different shape or size. Processes as below:
Forging stock blanking, forging stock heating, roll forging for blank, stamp forging to certain shape, trimming cut, intermediate inspection, inspection of the size and surface blemish of the forging pieces. Forging heat-treatment to ment to remove forging stresng stress and improve metal mametal machial machial machinability ; sweeping is used to wipe surface oxidation; the exterior appearance and hardness should be checked commonly
Welding Technology: our lofting master draw the same picture as the design in 1:1 proportion with the product. Our past master jointing worker then weld the iron products already bent to shape all together. The product should be level, straight, smooth, and the arch should be smooth, and without twist, and the flower mould should be smooth with the jointing has to be artistic and firm. The welding lelding line must be neat and firm. Flower mould must be in proportion with the same model number should be the same and coincide completely. Any workpiece cut by pcut by plasma cutting or not easy to polish must be polished before gang welding. Accessory pieces pieces pieces pieces must be forged or polished before bent in shape, then we then welded with main iron art structure. Any burr occurred after forged must be polished before bending. ending. The gr. The grad distance must be less than 110mm by any gate, railing, staircase, hacase, hacase, handrail or iron window witndow without any declare of special demands aemands as ands as per safety standty standards. Sample plate must be made to be confirmed before large batch production. The size and jointing technology of iron art products should be tested byested by quality inspector. Manufr. Manufacture size and the size required by design are allowed to make a deviation of 1ion of 1:10 of 1:1000 according to different products.
Hot galvanize technology: nology: nology: nology: eology: eology: eology: every piece can be welded all together should be welded before hot galvanize and it is not allonot allowed to weld after hotfter hotfter hot galvanize without any special situation. Forion. For hot gal hot galvanize pronize 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 thevent 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 welding directly. The thickness of cold galvanizing anizing layer is ayer is 5-15um, can keep the product out of rust for more than 2 years. Buears. But hot gat hot gat hot galvant galvanize technology, the best of all in this fieldis field, iron art decorrt decoration prodion products are pus 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 ayer is above 6 above 65μm, even come up to e up to 100& to 100μm. The ;m. The advantages of hot galvanizgalvanize is that it has good covering power, dense galvanize layer and without any organic matter. The weather-resistant mestant mechanism of Zinc includes mechanical protection and eln and electrocelectrocelectrochemicaochemical protection: the on: the surface ourface of hot galvanize layer has ZnO, Zn(OH)2 , ZnCO3-2Zn(OH)2-H2O in atmospheric corrosion condition,ndition, which slow down the rustyhe 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 to base me base metallic iron of hot galvanize technology is much better than that of cold galvanizing, and hot galvaot galvani galvanizing can keep the products out of rust over 50 years.
Painting technology: gloss of the painting divided into:ed into: light, matte, semi-matte, light divided into: touches, semiflat, dead luster. The brighter the paintings intings are, the mor the more ageing-resistanresistant they are. The drying functions are dividee divided into surface drying and hard drying with suitable moisture of 65 percent. Each kind of painting makes different drying time, to ensure thnsure the str the strength trength trength of adhesive force and to make it look the same as new, we cont 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 dface 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-comt;Bi-component acrylic finish coat surface dryingdrying time is 0.5 hour, hard dry time is 8hours
Alcohol acid gulf re gulf red ulf red finish coat surface drying time is 2 hour, hard dr hard dry time is 24 hours
Red lead gulf red finish coat surface drying time is 4 hour, hard dry time is 24 hours
