Welds in PVC windows. Types of welds in the windows.

PVC window frame and sash frames arise from joining together several independent, “loose” sections of window profiles of a specific size. The process in which the elements are combined and combined into one whole is called “welding”. Profile sections welded at different angles form the corners of the window structure, hence it is widely said and written about the quality and appearance of “welds” of PVC window corners. What determines the quality and aesthetics of welded corners?
How corner welds are formed in PVC windows

PVC window profiles exposed to temperatures of around 80 ° C become soft and plastic. Susceptibility to temperature and high fusibility of polyvinyl chloride is used in the process of joining structural elements of windows and doors. Individual profile elements cut to appropriate lengths go to a device called a welding machine, in which when pressed “in contact”, they are heated using “mirrors”.

Contacting, warmed and at the same time squeezed edges of window profiles are melted, permanently connecting with each other. The excess of melted material flows to the surface of the corner and solidifies, forming a “flow out” which is removed mechanically in the process of cleaning the corner after welding.

The whole description of the process may seem a bit complicated, which is why we decided to show how the corners of PVC windows are formed in a special film. The material was created thanks to the courtesy of the MIROX company from Poznań, whom we thank for help and cooperation.

The welded corner of the frame or sash in the PVC window plays an important structural role and must be able to transfer forces from both atmospheric loads and operational loads.

Buyers of windows, however, seem to assess the quality of welds not so much in terms of strength and technical perfection, but primarily in terms of aesthetic performance. The process of creating a standard, wide corner welding and cleaning, which can be seen in the film, is highly automated and in most cases takes place without the participation of employees.

Therefore, it seems that the aesthetic assessment process should be adapted to the production processes. The weld in the window does not have to be an outstanding work of art, but in each case it must be an effective combination of elements forming the structure of the window or door.
Types of welds in PVC windows

The technical and technological progress that is constantly being made within the equipment for processing PVC window profiles has caused that in the last few years there have been many new possibilities for welding corner windows and doors. In this way, the window industry meets the aesthetic expectations of buyers.

In addition to fairly wide, standard corner welds, completely new possibilities for creating joints in plastic windows have appeared. Currently, we can talk about four different types of corner welds:

The first one is like the one in the film, standard, fairly wide, made at an angle of 45 °.
The second is a combination of a corner in the HFL standard (Holz Fenster Look). In this technology, the inside of the profiles are joined together at an angle of 45 °, the outer rebates at an angle of 90 °. In this way, there is a deceptive similarity to the connections of wooden windows.

The third option is a 45 ° contour weld, popularly called “thread”. “Thread” indicates that we are dealing with a connection of negligible width.

The fourth, latest corner welding option is a V-Prefect 45 ° connection. Flat, accurate weld with a small width, almost invisible to the eye reminiscent of perfect connections of aluminum profiles.

PVC window frame and sash frames arise from joining together several independent, “loose” sections of window profiles of a specific size. The process in which the elements are combined and combined into one whole is called “welding”. Profile sections welded at different angles form the corners of the window structure, hence it is widely said and written about the quality and appearance of “welds” of PVC window corners. What determines the quality and aesthetics of welded corners?

How corner welds are formed in PVC windows

PVC window profiles exposed to temperatures of around 80 ° C become soft and plastic. Susceptibility to temperature and high fusibility of polyvinyl chloride is used in the process of joining structural elements of windows and doors. Individual profile elements cut to appropriate lengths go to a device called a welding machine, in which when pressed “in contact”, they are heated using “mirrors” – UPVC Windows Costs

Contacting, warmed and at the same time squeezed edges of window profiles are melted, permanently connecting with each other. The excess of melted material flows to the surface of the corner and solidifies, forming a “flow out” which is removed mechanically in the process of cleaning the corner after welding.

The whole description of the process may seem a bit complicated, which is why we decided to show how the corners of PVC windows are formed in a special film. The material was created thanks to the courtesy of the MIROX company from Poznań, whom we thank for help and cooperation.

The welded corner of the frame or sash in the PVC window plays an important structural role and must be able to transfer forces from both atmospheric loads and operational loads.

Buyers of windows, however, seem to assess the quality of welds not so much in terms of strength and technical perfection, but primarily in terms of aesthetic performance. The process of creating a standard, wide corner welding and cleaning, which can be seen in the film, is highly automated and in most cases takes place without the participation of employees.

Therefore, it seems that the aesthetic assessment process should be adapted to the production processes. The weld in the window does not have to be an outstanding work of art, but in each case it must be an effective combination of elements forming the structure of the window or door.

Types of welds in PVC windows

The technical and technological progress that is constantly being made within the equipment for processing PVC window profiles has caused that in the last few years there have been many new possibilities for welding corner windows and doors. In this way, the window industry meets the aesthetic expectations of buyers.

In addition to fairly wide, standard corner welds, completely new possibilities for creating joints in plastic windows have appeared. Currently, we can talk about four different types of corner welds:

The first one is like the one in the film, standard, fairly wide, made at an angle of 45 °.
The second is a combination of a corner in the HFL standard (Holz Fenster Look). In this technology, the inside of the profiles are joined together at an angle of 45 °, the outer rebates at an angle of 90 °. In this way, there is a deceptive similarity to the connections of wooden windows.
The third option is a 45 ° contour weld, popularly called “thread”. “Thread” indicates that we are dealing with a connection of negligible width.
The fourth, latest corner welding option is a V-Prefect 45 ° connection. Flat, accurate weld with a small width, almost invisible to the eye reminiscent of perfect connections of aluminum profiles.

Modern window technology brings not only better levels of performance of the structure, but also the possibility for the buyer to influence the final aesthetics of the products. The unlimited range of colors among the available veneers and paints, the freedom of shapes and dimensions, and now also ways of joining PVC window elements together makes a modern home can be as functional as it is nice.

There is only one problem in all this. The more choices you have, the harder your decision is to be made, the real embarras de richesse, the trouble of wealth. Each investor must deal with this problem alone.

Photo by ohsarahrose

Leave a Reply

Your email address will not be published. Required fields are marked *