Cold metal welding - it is an opportunity to make minor repairs without welding machine. In fact, it is the glue that securely fixes and seals the steel components. This method is used by plumbers and motorists. Its main advantage - simplicity in use. Editorial HouseChief in the material gathered for you useful information about the composition and recommendations for the use of cold welding.
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- 1 And uses cold welding
- 2 Cold metal welding: species
- 3 Features of operation of bonded parts
- 4 The pros and cons of cold welding
- 5 How to choose a suitable composition
- 5.1 Operating temperature
- 5.2 Potting adhesive properties
- 5.3 Cold welding for auto repair
- 6 Popular brand cold welding
- 7 How to use cold welding
And uses cold welding
The basis is a cold welding epoxy. Depending on the application, in her various additives are added to ensure the bonding strength in all operating conditions of parts. After applying the glue hardens after 10-20 minutes, and after a few hours it becomes integrally solid.
Scope cold welding wide: it and plumbing work at home and car repair, and decoration. But do not get too much to hope for such a connection method: after all it is not as reliable as a real welding, and is likely a temporary solution.
Cold metal welding: species
Cold welding is divided on different grounds. The consistency of it is liquid and the like plaster. Liquid components should be mixed together.
There is a separation of welding and for other purposes:
- Universal - suitable for bonding of parts made of metal, wood and polymers;
- metal - are as filler metal and high durability;
- road - it is composed of components that increase resistance to mechanical stress;
- waterproof - designed for mounting and sealing even under water;
- high temperature - this composition bonded parts can be operated in the temperature range up to + -60ºS 1500ºS.
And finally, the welding seam can vary in type and worktop. She may be:
- point - used to repair vessels of copper and aluminum, with aluminum wiring;
- seam - for large-scale works with metal;
- butt - to connect the wiring and metal rings;
- the HQ - designed to work with brass.
Features of operation of bonded parts
Cold welding - a polymer mixture that will bond after a short heating parts literally to body temperature.
Under ideal conditions, ie without the influence of any external factors that place this attachment is very reliable, but still not so strong as in this welding.
The pros and cons of cold welding
In many emergency situations, the polymer composition, the ability to bond metal parts will be simply irreplaceable. Here are its main advantages:
- sold at almost any hardware store;
- You can connect the items without dismantling;
- quickly grasped;
- parts are not subjected to deformation;
- weld looks neat;
- It does not form a waste and does not require special conditions of the application work or personal protective equipment;
- It does not require the skills of the master;
- It withstands high temperature exposure.
It has cold welding and disadvantages. Among them it should be noted that the fusing mixture is still longer than the usual weldingAnd fastening strength - less. Also, before starting work, should be given sufficient time for thorough preparation surfaces.
How to choose a suitable composition
The main rule of selection of the type of cold fusion - a sphere of its application.
Operating temperature
Cheap versions welding parts allow to operate at temperatures up to 260 ° C. This adhesive is suitable for the repair of items that are not exposed to high temperature exposure.
By using such a composition can be performed fixing and sealing products that continuously heated, e.g., tanks for water in bath or even Small stoves. An example of such heat resistant welding - "diamond" or "Thermo", products of domestic production.
Potting adhesive properties
For repair to be selected plumbing resistant compositions with metallic filler guaranteeing reliability and tightness of the joint.
Remember that such a mixture, in the first place, it seals so that they are inferior in strength to other types. Moreover, they are still not resistant to mechanical stress.
Cold welding for auto repair
Cold welding for auto possesses a number of advantages: it can withstand great temperature changes and is resistant to vibration load. He is not afraid of such a composition and chemical exposure, but usually it is not grasped on wet surfaces.
Drivers may optionally make such an adhesive and a suitable screw thread cut thereon to complete solidification of the mass. Such a fixture would not last long, but to stations will enable to reach.
Popular brand cold welding
The range of such products is quite wide, but not all articles of this series can be safely called quality. If we talk about domestic brands, some well-deserved trust the "Diamond" and "Polimet". Of the import brands particularly highly appreciated products Hi-Gear and ABRO.
Qualitative composition represented by the following marks.
How to use cold welding
To cold welding reliably and firmly attached to the surface, you need to follow the technology of its application:
| Illustration | Description |
 | Before you begin, you need to remove the dirt from the surface and thoroughly clean it with sandpaper or needle files with a large grain. The roughness of the welcome, since coupling with the adhesive will be stronger. After stripping is necessary to degrease the place of gluing. |
 | It is necessary to cut a piece of the size of the material to be enough for the job. Cold welding is easy to cut, like clay, you can even do this in the usual kitchen knife. |
 | Carefully mash composition until uniform. During operation, all components are mixed. |
 | Apply glue to the right place and leave for the pour for an hour, and better - two or three. During this time, cold welding pick up the necessary strength. If there is a need to paint or polish the details, it is better to withstand day to this work. |
How to use a liquid formulation described in this small video course:
And what brand you prefer cold fusion? If you are ready to advise our readers quality purged, write about it in the comments!
