Problems in the production process of aluminum alloy doors and windows profile

[China Aluminum Network] thermal break aluminum doors and windows aluminum doors and windows profiles is a more valuable profile of the thermal break bridge doors and windows profiles, it is a new energy efficient insulation insulation developed after the ordinary aluminum alloy doors and windows Hot aluminum profiles, with high strength, good insulation effect, multi-chamber structure and other characteristics, become today's building materials, home decoration companies must study decorative window profiles.

The aluminum alloy aluminum alloy door and window building profile with heat-insertion broken bridge is a new type of door and window building material that meets the building energy saving requirements. The outstanding advantages are: good rigidity, super-hardness, high strength, good fire resistance, excellent thermal insulation performance, and lighting area Large, atmospheric corrosion resistance, long service life, good decorative effect, etc., its comprehensive performance, and is made of non-metallic materials with low thermal conductivity connected aluminum alloy building profiles, is a composite material with insulation and cold insulation function. In addition to its characteristics as a building profile, it also has excellent insulation properties and sound insulation properties.

"Pile broken bridge technology" and "Twist strip heat insulation aluminum alloy profiles" in the broken aluminum alloy doors and windows technology is more complex and it is easy to make mistakes, the summary of experience and related process data show that:

1 Casting broken bridge liquid thermal insulation material is injected into the aluminum alloy profile insulation slot and solidified, cut off the temporary connection bridge in the aluminum alloy profile insulation slot to make the metal connection, and the aluminum alloy profile is cut off through the insulation material. Partially combined.

1.1 In general, the heat-insulating adhesive cannot be poured into the super-cooled profile, otherwise it will easily lead to the cracking of the heat-insulating profile in the subsequent processing. At this time, attention must be paid to the temperature when pouring the aluminum material. The ambient temperature during production should be kept at 18 °C -30 °C range, the relative humidity should be less than 50%.

1.2 The surface of the heat insulation tank should be cleaned, and must not have dust, grease and dirt. All of these will have a greater negative impact on the adhesive force.

1.3 Bubbles appear on the mixture after pouring, and water is poured in the casting trough (the mixture is contaminated by water or very moist air). At this time, the casting trough should be checked. The material can be removed from the material tank for a pour to identify if the mixture is exposed to moist air.

1.4 The poured profile should pay particular attention to the level that should be kept when piling up, so as to avoid the low flow when the castings are still liquid. Brackets should be placed between the profiles, and the brackets should be placed on a hard material for isolation between layers. According to the complexity of the profile, wooden or aluminum brackets are used. Care should also be taken not to place the bracket on the castable to prevent the cast from sticking to the bracket. When stacked, the operator can better inspect the bonded ends to make sure they are well bonded without voids. Profiles must lie flat to avoid damage to the low profile sections due to dripping.

1.5 When the bridge is broken, the blade thickness should be 75%-100% of the required width of the bridge. When sawing, the temporary bridge of the aluminum profile must be completely cut off, and the depth of the insulation glue under control should not exceed 1 mm. When cutting the temporary connection bridge of the metal, avoid the cut too deep.

2 wear strips of heat insulation aluminum alloy profiles with high thermal insulation properties of high-density polyamide PA66 strips, or PVC hard plastic strips through the rolling process, so that aluminum, plastic connection into one.

2.1 The problem of easy-to-open teeth when opening teeth: Due to the excessive level of the material and not noticed, all batches of A or B teeth were opened, and when the finished product heat insulation material was found, it was found to have exceeded the standard and terminated. Therefore, in the production, it is necessary to compare the drawing with the lower plane of the caliper profile section, the team leader and the quality inspector to analyze together, and the problem will not arise.

2.2 tooth development process problems: due to loosening of the mechanical screw away, to the wearer only to find the teeth open, or to the rolling test machine only to find that the teeth are not deep enough, the performance of the finished product can not meet the requirements (24N / MM). Can open 10 A, B material teeth, let the machine to adjust the machine pressure test is correct and then mass production. If the teeth are too deep, the inner teeth must be removed with a saw blade. This material will not be scrapped. If the teeth are not deep enough, all the teeth must be reworked. Therefore, a small error in the opening process will cause the whole line to be discontinued or batch For defective products, all must be given enough attention. At the same time, the opener must always pay attention to the direction of the profile, discharge carefully, adhere to two points in a straight line.

2.3 Work Inertia Prone to Problems: The wrong tape is used on the production line. Two orders of the same customer have the same color, but the requirements for the strips are different. In the production process, employees use the wrong strips for their experience and memory, and they are also appearing from time to time. In order to prevent employees from making the same mistakes, the team leader must carefully review each order and detail the requirements of the order on the scheduling board and make a corresponding identification so that everyone can use it accurately.

In short, the heat insulation broken bridge aluminum alloy door and window profile is a new type of environmental protection structural material, in its production process must be strictly in accordance with the process requirements to be able to better meet customer needs and the majority of the market for product quality requirements.

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