driveway gate

driveway gate , garden gate , iron gate ,&nbspamp;nbsp; gate Iron products have strict manufacture processes in designs, material selection and manufacture craft Design: in chargen 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 n 0.035 percent,S less than 0.030an 0.030&n 0.030 percent)cercent)cold drawn steel which is in line with ISO9001 internationalnational standard. Each steel material is strict selected with the surface surface nurface nurface neat and smo and smo and smoothd smoothd smooth, the separationparation angle shougle shougle should be no less than 45 degrees between between crtween crossen cross rib and steel bar surface, the surface should not crack at the bend parts afterts after benfter benfter benfter bentter bent 180 degrees flexural centre diameter, and steel d steel bar surface should not crack , scar over or over or collapsecollapsecollapse. Forging Technology: to force pressure oessure on the planchet by the metal forming machinery (air forging hammer and mechanical press ) sress ) so as to make it plastic deformation to achieve the certthe certthe certahe certain forgeable pieces in different shape or size. Processes as below: Forging stock blankck blankck blankck blankck blankck blanking, forging forging stock h stock h stock h stock h stock heatick heating, roll forging for blank, sblank, stamp forging to certain shape, triape, trimming rimming 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 Technology: our lofting master draw the same picture picture as the des the design in 1:1 proportion with the product. Our past master jointing worker then weld the iron products already beready bent to shape o shape a shape all together. The product should be level, straight, smooth, and the arch shoarch shoulch should be smooth, amooth, amooth, amooth, and th, and without twist, and the flower mould should be smooth witooth withoth with the jointing hasting has to be artistic and fic and firm. The welding line must be neat and firm. Flower mould must be in proportion wirtion wirtion withion with the same me same model number shumber should be the same and coincide concide concide comcide completely. Any workpiece cut by plasma cutting or not ear not easy to polish must be polished before gang welding. Accessory pieces must be forged or polished before bent in shape, then welded with main iron ar iron ar iron art structure. Any burr occurred after f after forged must be polished before bending. The grad distance must be less be less than 110mm by any gate, railing, stairc, staircase, handrail or iron window without any declare declare declare of special demcial demcial demaial demandl demands as per safety standards.andards. Sample plate muslate must be made to be confirm confirmed before large batch production. The size and jointing technology of iron art prn art products should be tested by quality inspector. Manufacture size and the size required by design are allowed allowed to make a deviation of 1:1000 according to different products. Hot galvanize technology: every piece can be wean be welded all together shouher should be welded before hot galvanize and it is not allowed to weld after hot galvanize without any special situation. For hot galvani galvanize prodize product products, weep hole should be opened from the private position of the tube to ensure air flow smooth for molten Zinc and acid wash.id 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 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 iof all in this field, irield, irield, irield, iron art decoration produon produon 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 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 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 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 hour0.2 hour0.2 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 dryin1ff8ing time is 4 hour, hard dry time is 24 hours