copper art

Detailed Product Description

copper art ,wrought wrought copper ,copper art product

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

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

Material selection: we select high grade fine st fine steel (P less than 0.035 percent,S less than 0.030  perbsp; percent)colcent)cold drawn steel which is in line with ISO9001 international standard. Each steel material is strict selected withted with the surface neat and smooth, the separation angleon angle should should be no less no less than 45 degrees between cross rib and steel bar surface, the surface should notould not uld not crack at the bend parts aftarts after bent 180 degrees flexural centre diameter, and steel bar surface 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 b stock blanking, forging stock heating, roll f, roll forging for blank, stamp forging to certain shapain shape, shape, trimming cut, intermediatermediate 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 oxidati oxidation; the exterior appearance and hardness should be checked commonly

Welding Technology: our lofting master draw the same picture as the design in sign 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 th, and the flower mould shouuld should be smooth with the jointing has to be artistic and firm. The welding line mu 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 plasma cutting or not easy to polish must be polished before gang welding. Accessory pieces must be forged or polished before bent in shape, then e, then welded with main iromain 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 of special demands as per safety standards. Sample plate must be made to be confirmed bfirmed 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 welded 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 welding directly. The thickness of cold galvald galvanizing layer is 5-15um, can keep the product out of out of rust for more than 2 years. But hot But hot galvanize technology, the best of aest of all in thil in this field, iron art decoration products are put into about 455 degrees Zinc bath wc bath with Zinc rare earth alloy and billet aluminum, is use, is used by osed by our Shou Jee iron art decoration corporation. The thickness of the hot galvanize layer is above 65&bove 65μm, even come up to 100μm. The advantages of ages of hot galvanize is that it has good coveood covering powerng power, dense galvanize layer and without any organic matter. The weather-resistant mechanism of Zinc includes mechanical proteal proteal protection and electrochemical protection: the surface of hot galvanize laanize layer has ZnO, Zn(OH)2 , ZnCO3-2Zn(OH)2-H2O in atmospheric corrosion conditi condition, which slow down the rusty of Zinc to a certain extent. This protective layer called whitled whiteed white rust can form a 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: nology: nology: gloss of the painthe 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 suitablesuitable 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 he is 1 houis 1 hour

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

Bi-component epoxy zinc riczinc 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 timeing time is 0.5 hour, hard dry time is 8hoe is 8hours

Alcohol acid gulf red finish coat surface dryinge drying time is 2ime 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