CN1195738A

CN1195738A - Method for producing poured bridge cut-off aluminium section

Info

Publication number: CN1195738A
Application number: CN98113725A
Authority: CN
Inventors: 李江岩; 李之毅
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-16
Filing date: 1998-01-16
Publication date: 1998-10-14

Abstract

The present invention relates to a production method of heat-insulated casting type bridge-cut-off aluminium section material, including the following steps: using die to extrude into the aluminium section material with die cavity suitable for making door and window; then, using high-pressure injection molding machine to inject the double-component material of polyurethane into the die cavity of said aluminium section material or inject the raw material of polystyrene or polyvinyl chloride into the above-mentioned die cavity, through foaming and hardening treatment, and riving the connected aluminium wall so as to obtain the finished product. Said invention possesses stable physical dimension, and the riving-formed "bridge-cut-off" does not damage the requirement of original accuracy, and the size of "bridge-cut-off" is limited by bearing requirement, and not limited by dimension and symmetry, so that it can provide wide for door and window design.

Description

The production method of poured bridge cut-off aluminium section

The present invention relates to the aluminium alloy building-material technical field, specifically produce a kind of method of poured bridge cut-off aluminium section of insulation.

Along with science and technology development, people's living standard improves constantly, simultaneously to the requirement that beautifies indoor environment also in continuous raising, so different shape aluminium extruded sections door, window very attractive in appearance constantly is applied to beautify family, beautify the environment.Heat " bridge cut-off " aluminium extruded sections of producing insulation in the market has two kinds of methods: a kind of is to adopt embedded hot bridge cut-off structure, is to insert two nonmetal with two aluminium extruded sectionss, fuses through the special purpose machine tool rolling.Owing to caused the difficulty of fit on two section bars and nonmetal combination, if lathe is adjusted when incorrect or the aluminium extruded sections form and position tolerance cooperatively interacts when bad, cause dimensional errors or waste product easily, and rolling connects the genus mechanical connection, it is connected when being subjected to shearing, if the mistake of being equipped with, easily dislocation and influence quality, its shortcoming is required precision height, waste product rate height, because of " bridge cut-off " fixed size, not malleable, the window shape design is restricted, because rolling requires symmetry, bridge cut-off can only be designed to the both sides of symmetry, complex process, cost height; Second method is to adopt the cast-type hot broken bridge structure, and this method is with in the plastic cement cast aluminum section bar open slot, treat that plastic cement solidifies after, again with the excision of section bar coupling part, " bridge cut-off " section bar.Its major defect is that the section bar extruding of open ports is difficult, and easy deformation, form and position tolerance and dimensional accuracy also are difficult for reaching.

The production method that the purpose of this invention is to provide a kind of poured bridge cut-off aluminium section of insulation.

The object of the present invention is achieved like this: its technical scheme is: the aluminium extruded sections that squeezes out earlier the belt type cavity that is suitable for processing door and window by mould, the two-component materials that to make polyurethane then injects by the high-pressure injection moulding mechanical irrigation in the die cavity of section bar or the raw material of polyphenyl or polyvinyl chloride is injected in the die cavity of section bar, after reaction foaming and solidifying, be the bridge-cut aluminum section bar finished product after tearing the aluminium wall of connection.Also be reserved with the impression of being convenient to tear between above-mentioned bridge cut-off aluminium wall of tearing and the section bar.

The present invention comprises that also dual-component polyurethane is meant what following component and ratio of weight and number formed after mixing, and wherein the first component is polyethers, polyester, polyalcohol 38-46 part; Component B is that polyisocyanates comprises TDI, MDI or PAPI 35-55 part; Crosslinking agent is 1.4-butanediol, ethylene glycol, diethylene glycol (DEG), glycerine or expoxy propane 0.05-0.08 part; Catalyzer is tertiary amines and organotin 0.001-0.01 part; Stabilizing agent is silicone 0.005-0.01 part; Blowing agent is fluoro trichloromethane or chloromethanes 0-0.09 part; Age resistor is 2.6-BHT or 2.2 ｀-methylene-two-(4-methyl-6-tetrabutyl phenol) 0.1-0.3 part; Fire retardant is inorganic compound or organic additive 5-11 part; And an amount of water.

The present invention is owing to adopt to pour into dual-component polyurethane in the die cavity of aluminium extruded sections, treat foamed solidification after, become bridge-cut aluminum section bar after tearing the aluminium wall that is connected again, therefore have following advantage:

1. it is stable to satisfy product size required precision, physical dimension easily, because by the profile size required precision, the section bar that squeezes out is complete, do not have different with the aluminium extruded sections of producing in the market, be easier to reach quality requirement, tear formation " bridge cut-off " and also can not damage original required precision, so the process precision is reliable;

2. the randomness of project organization, " bridge cut-off " size only is subjected to restriction of force request, is not subjected to the restriction of size, and " bridge cut-off " is not subjected to symmetric restriction, and therefore door and window type scope of design broad is provided;

3. processing technology is simple, supporting easily, cost is relatively low.

Below will be by embodiment and the invention will be further described in conjunction with the accompanying drawings:

Fig. 1 is the three-dimensional simplified schematic diagram of extrudate of the present invention

Fig. 2 is a perfusion expanded polyester simplified schematic diagram of the present invention

Fig. 3 is the aluminium wall simplified schematic diagram that separation of the present invention connects

Fig. 4 is the three-dimensional sketch of poured bridge cut-off aluminium section of the present invention

Fig. 5 is a finished product casement window section simplified schematic diagram of the present invention

Fig. 6 is an another kind of finished product sliding sash section simplified schematic diagram of the present invention

Example 1:

Its technical scheme is: the aluminium extruded sections (as shown in Figure 1) that squeezes out earlier the belt type cavity that is suitable for processing door and window by mould, the two-component materials that to make polyurethane then injects in the die cavity of section bar by the high-pressure injection moulding mechanical irrigation, its method is: select first component polyethers 38-42 kilogram for use, add following auxiliary agent again, wherein catalyzer is 0.008 kilogram of a tertiary amines, stabilizing agent is 0.0055 kilogram of a silicone oil, blowing agent is 0.05 kilogram of a fluoro trichloromethane, age resistor is 2,0.2 kilogram of 6-BHT, fire retardant is 6 kilograms in inorganic compound aluminium hydroxide and an amount of water, together squeeze in the hybrid chamber head of high-pressure injection moulding machine with component B polyisocyanates MDI 45-53 kilogram then, and pour into by High Pressure Gun in the die cavity of section bar, react foaming second through 10-30, solidified (as shown in Figure 2) through at least 24 hours again, after the impression of reserving between bridge cut-off aluminium wall and the section bar of being convenient to tear is torn the aluminium wall (as shown in Figure 3) that is connected, be bridge-cut aluminum section bar finished product (as shown in Figure 4).Fig. 5-the 6th, the finished product window that adopts the bridge cut-off aluminium to make.Example 2:

In auxiliary agent, add 0.07 kilogram of crosslinking agent expoxy propane again, and other is identical with example 1.

Claims

1, a kind of production method of poured bridge cut-off aluminium section of insulation, its scheme is: the aluminium extruded sections that squeezes out earlier the belt type cavity that is suitable for processing door and window by mould, the two-component materials that to make polyurethane then injects by the high-pressure injection moulding mechanical irrigation in the die cavity of section bar or the raw material of polyphenyl or polyvinyl chloride is injected in the die cavity of section bar, after reaction foaming and solidifying, be the bridge-cut aluminum section bar finished product after tearing the aluminium wall of connection.

2, the production method of bridge-cut aluminum section bar according to claim 1 is characterized in that being reserved with the impression of being convenient to tear between the bridge cut-off aluminium wall torn and the section bar.

3, the production method of bridge-cut aluminum section bar according to claim 1 is characterized in that: dual-component polyurethane is meant what following component and ratio of weight and number formed after mixing, wherein the first component is polyethers, polyester or polyalcohol 38-46 part; Component B is that polyisocyanates comprises TDI, MDI or PAPI35-55 part; Crosslinking agent is 1.4-butanediol, ethylene glycol, diethylene glycol (DEG), glycerine or expoxy propane 0.05-0.08 part; Catalyzer is tertiary amines and organotin 0.001-0.01 part; Stabilizing agent is silicone 0.005-0.01 part; Blowing agent is fluoro trichloromethane or chloromethanes 0-0.1 part; Age resistor is 2,6-BHT or 2.2 ｀-methylene-two-(4-methyl-6-tetrabutyl phenol) 0.1-0.3 part; Fire retardant is inorganic compound or organic additive 5-11 part; And an amount of water.

4, according to the production method of claim 1 or 3 described bridge-cut aluminum section bars, it is characterized in that: dual-component polyurethane is meant what following best component and ratio of weight and number formed after mixing, wherein the first component is polyethers 38-42 part; Component B is polyisocyanates MDI 45-53 part; Crosslinking agent is expoxy propane 0-0.03 part; Catalyzer is tertiary amines 0.001-0.01 part; Stabilizing agent is silicone oil 0.005-0.01 part; Blowing agent is fluoro trichloromethane 0-0.1 part; Age resistor is 2.6-BHT 0.1-0.3 part; Fire retardant is inorganic compound 5-10 part; And an amount of water.