Welding sheet polypropylene hairdryer

Welding sheets of polypropylene a hairdryer - it is the connection edges of two sheets of polypropylene by means of building the dryer (air gun). The machine heats the abutting edges of the sheet and extending therebetween polypropylene wire to 270˚S, fusing all three elements together.
Stages of welding sheets of polypropylene a hairdryer:
The choice of material. Need a hair dryer building sufficient capacity, thin plastic sheets and a polypropylene rod (wire). Bars and sheets should be made of the same class, otherwise they will melt under the influence of the hot air evenly.
Docking. The sheets are placed on any flat surface, and their edges are processed with sandpaper. The process itself is similar to fusion welding with fusible electrodes. That is, the hair dryer welder moves along the weld joint filling consumable polypropylene of which the welding rod. Within 5-7 minutes boiled leaves can be used for other purposes.

Important! Using a hair dryer for welding, keep in mind that during slow fusion zone polymer sheet immediately adjacent to the weld area may become hot. This will lead to deformation of the joint. Therefore, when using a hair dryer welding must be carried out promptly.
Advantages and disadvantages of welding hairdryer

Created by this method has the smallest seam strength than the joints by using other welding processes. Maximum strength ratio at such alloying reaches values ​​greater than 0.7. Therefore, this method is usually fastened parts are not very thick edges - no more than 6 mm. However, the rapid melting of small fine details of this method - the best solution.

Welding polypropylene sheet extruder

Welding polypropylene sheet extruder - a reliable way to connect polypropylene sheet used for manufacturing various containers, galvanic baths, air, septic tanks and other three-dimensional structures.
Welding sheet extruder:
Materials and Instruments. To work need: sheets of polypropylene, polypropylene rod or electrode and the hand extruder. Bars and sheets must be fabricated from a polymer of the same class, otherwise they will melt unevenly.
Docking. Sheets ends close to each other lie on any flat surface. Between them, in the seam area, is clamped polypropylene rod. Further, using the extruder and edge bars are heated and fused.

The extruder is operated at a temperature 270˚S. Welding must be done quickly. Otherwise, the area adjacent to the seam deformed polypropylene sheets, seam will fragile.
Advantages and disadvantages of welding extruder

Made using extrusion seam stronger than the connections made by means of welding dryer. His strength ratio to 0.8. With the help of an extruder can be quickly and securely connect directly to the workplace polypropylene sheets with thickness up to 16 mm.

Bonding of polypropylene - the glue polypropylene

Polypropylene is a plastic trudnoskleivaemym view - glue it is extremely difficult without welding. In addition, this process requires a mandatory preparation.

You can take advantage of special adhesives that quickly and completely glued quality plastic. The main thing in this matter - to choose a good solution.
Types of adhesive polypropylene

Substances gluing plastic, divided into several categories:
Thermoset. They are the basis of polyester, epoxy and other thermosetting resins.
Thermoplastic. This category can be schematically divided into two areas: compositions based on thermoplastic resins and rubber-based.

Thermoplastic adhesive compositions dissolved and softened by temperature. In contrast, thermoset, they do not alter its chemical structure by gluing, which is of advantage.

Also, adhesives are divided by the number of components: one - and two-component. The first sold one copy in the already finished form and in a single package. The latter have two packaging components. Before you start, you need to mix the two components, clearly adhering to the manufacturer's instructions.

An example of a one-component adhesive can serve as instant «Cosmoplast 500", designed for bonding profiles in window manufacturing. An example of a two-component solution - epoxy adhesive for plastic. Its components are epoxy resin and hardener.

Two-component adhesives have an advantage - a longer shelf life than a single component. The reason is that as long as their constituents do not come into contact, there will be no cure.
The process of preparing bonding

Before gluing parts polypropylene need training. It is necessary to check the entire assembly and general construction adhesive without having to put a mark in places where it is needed.

Sample preparation bonding polypropylene pipes:
We must make sure that the temperature of the ambient air, which will host the bonding varies between + 5 ° C - 35 ° C.
It is important to check the availability of tools. Glue gun, pipe cutters and brush with natural bristles should be at hand.
Scissors (pipe cutters) must be cut into segments of a certain length of the pipe.
Further, it is desirable to clean up the edges of cuts using sandpaper. It is necessary to remove any burrs that may prevent sealing compound.
Now you need to assemble the entire structure, to try and make a mark marker in place of the future adhesion, as well as the level of depth of the entrance of the pipe fittings. Then you can make out the design.
Before applying the glue necessary to mix well. Flagged areas should be degreased and cleaned using cleaning agents.

Important Tips

To carry out the installation is better to choose a proven brand, rather than start from the cost of the adhesive. Expensive solutions are often inferior in quality solution at an average price.