Of profile of window of aluminium alloy door forging skill

Profile of window of aluminium alloy door is to make the basic material of window of aluminium alloy door, it is the main body of aluminous door window. The standard measure of profile of aluminous door window, accuracy class, chemical composition, mechanical function and outside quality are right the making quality of aluminous door window, carry is diligent use and use age several have main effect. 　　

One, the standard measure of profile of aluminous door window

The mark object-staff of profile of aluminous door window is spent, principal with profile sectional height gauge is spent (use in window of aluminium alloy door to call its measure of ply of door window frame) to symbolize, make measure series. Profile of aluminous door window is principal have 40, 45, 50, 55, 60, 65, 70, 80, 90, the measure series such as 100mm. The measure series that the window uses meantime aluminium alloy is lesser, the measure series that aluminium alloy door uses slants big. The measure set of designation of aluminous door window is same, the sectional form that need not decide profile of aluminous door window and measure are same. The profile of window of aluminium alloy door of same measure series, its are sectional appearance and measure are appropriate miscellaneous. Be necessary basis design is specific analyse and treat. Basis of profile of aluminous door window is sectional appearance, divisional for sincere profile and hollow profile, the carry dosage of hollow profile is bigger. The mural large scale of profile of aluminous door window, be used at aluminium alloy window not under 1.4mm, with aluminium alloy door not under 2mm. The scale of length measure cent of profile of aluminous door window, times feet and errant feet 3 kinds. Specified cut lengths normally not exceed 6m, errant feet length not less than 1m. 　　

2, the chemical composition of profile of aluminous door window and mechanical function

Aluminous door window chooses aluminium magnesium silicon to fasten aluminium alloy profile, its chemistry composition divides aluminium outside, include the alloy part such as silicon, iron, copper, magnesian, manganese, chromic, titanium, zinc. Meantime contains magnesium 0.45 - 0.90% , contain silicon 0.2 - 0.6% . The mechanical function of profile of aluminous door window: B of tensile strength б is not less than 157N ／ Mm2; P0.2 of stretchy stress б is not less than regular blame portion 108N ／ Mm2; Percentage elongation is not less than 8 ％ ; Hardness HV is less than 58. 　　

3, of aluminium alloy profile produce of skill and profile of window of equipment aluminous door produce, preparation of course ingot casting, knead hold shape, heat deals with and appearance deals with 4 skill process. 　　

(one) ingot casting preparation

This skill process includes burden, fusion, forging, the principal working procedure such as soaking, form the ingot casting of sure and chemical composition and appearance measure. Make good raw material, in the fusion in gas furnace or electric stove. The furnace of fuse-element course quiet place after fusion, launder, flow dish, filter till crystallizer inside, again classics water-cooling, form the ingot casting of sure appearance. To ensure ingot casting appearance is bright and clean, choose magnetic force to forging or heat up upset to make a way, have much model (much crystallizer) forging. Ingot casting soaking, it is to make forging the metallographic arrangement of the state is changed equably, make first aggrandizement phase deliquescent. Soaking is undertake inside soaking furnace. Soaking progressed the plasticity of ingot casting, be helpful for progress kneading hold rate, outspread massage the birthday number that holds a mould, improve knead the outside mass that holds profile. 　　

(2) knead hold shape

Knead hold shaping is heat in ingot casting, knead hold, Jiao Zhi of cooling, tension, curium cut a when wait for working procedure to form to produce actively the line is aspirant row. Produce on-line equipment, include inductive heating furnace, knead hold machine, stage giving heat, piece makings carry machine, profile progress turns over straightening machine of equipment, cold bed, tension, lay aside machine of makings stage, drawing, sawing machine. Of ingot casting heat temperature is held normally accuse to be in ℃ of 400 ℃ ~520, exorbitant or temperature is too low knead immediate impact hold shape. Knead hold machine choose the odd press that use oil normally, its tonnage is in 1200 tons of ~2500 ton between. Knead hold of machine knead large and small of the diameter that hold a canister, along with knead hold change of machine tonnage large and small, knead hold machine tonnage big, knead the diameter that hold a canister big also. Knead the diameter that hold a canister to be normally inside 150mm~300mm program. Knead hold thing job temperature to be ℃ of 360 ℃ ~460, knead hold speed 20mmin~80mmin. Knead hold a thing principal include a pattern. Knead hold cent of characteristic of mould basis structure to be the smooth model, model that divide valve, tongue model and billabong combination model. Produce profile of window of aluminium alloy door is multi-purpose smooth model and billabong combination model. Give makings stage to admit come from knead hold airplane is crowded the profile that give, transfer profile to give makings workbench. Giving makings workbench is horizontal more ship model, its are horizontal an athletic speed and knead hold speed synchronism. Cold bed enters Liang Shi for the pace more, equipment has the fan of appropriate amount below, ensure profile cools equably, make profile is before Jiao Zhi temperature under 70 ℃ . Tensional straightening machine contains change gate, can correct of drawing of subtense of edge change school is straight. Stage of lay aside makings is after tensional straightening machine, offer profile to sawing machine workbench, sawing machine curiums by scale profile. 　　

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