Daily Archives: August 27, 2018

How to bond metal to metal

Sometimes you want to fasten two or even more pieces of metal without involving high temperatures and welding equipment. It is possible to use glue, as long as you choose the right type.

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Types of metal bonding adhesive

Glue for metals basically falls into three categories. These are polyurethane, epoxy and the cyanoacrylate variety. With each type of adhesive, there will be specific instructions, which must be followed closely to obtain good results. Polyurethane is very sticky, is for all kinds of materials, and provides a waterproof bond once clamped and chemically cured.

Epoxy glues are the strongest, and generally require hardener to be mixed with adhesive and applied quickly, though curing may take up to 24 hours. While good for metal, epoxy glues are not suitable for ancient Egyptian artefacts, according to this report in The Guardian!

Cyanoacrylate adhesives are the “super glues” that can bond smooth surfaces together fast. They are not suitable where there are gaps between metal surfaces.

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Before applying the bonding material

Adequate preparation of the metal surfaces will be necessary to ensure that they stick together properly. This means cleaning them and removing any signs of rust, corrosion or paint. Detergent may be necessary to eliminate any trace of grease or oil that could interfere with the bonding process. Make sure that the surfaces fit together in a compatible fashion without any large gaps between them, being careful not to touch the surfaces to be bonded. Finally, roughen the surfaces to be bonded with fine sandpaper.

Once this has been done, follow instructions for applying adhesive to the appropriate surfaces and join them together, working in a space with plenty of ventilation. If you want to find out more about the potential of metal bonding adhesive it would be a good idea to look at what a website such as http://www.ct1ltd.com/product-applications/metal-to-metal-adhesive/ offers. A website like this will feature a range of products, along with guidance and advice.

Having a method of bonding metals together using glue has many useful applications, and is less stressful and has less potential for injury than welding metal together. Preparing the metal surfaces may take a little time, and the correct application of the adhesive must be made, but if these measures are taken, then metal bonding of a high standard should be the result.

5 more key things to know about VoIP

In a previous article, we looked at some of the key things to consider when implementing VoIP. But there is much more to take into account, so here are some more things you need to think about.

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1. Emergency calling

When you dial 999 from an PSTN phone, the operator knows where you are located. This doesn’t happen with VoIP as the call can be routed via different locations. It’s therefore important to either have a conventional line for emergencies, or make sure that all staff understand this limitation.

2. Training matters

When switching to a new system to take advantage of wholesale VoIP termination rates, there will inevitably be new equipment involved. The switch to an IP phone shouldn’t be all that much of a shift for office workers. Even so you may want to implement a training programme to ensure that people can make the most of the new features. If you have home workers who need to install new kit themselves or use a softphone, it is vital to provide good documentation and step-by-step instructions.

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3. Analogue gateways

Chances are that you will still need to support some analogue devices, which aren’t suitable for digital networks. In this case, taking advantage of Wholesale VOIP termination rates means having a gateway to link these devices to the VoIP network. This can also be used to link analogue phones in places like loading bays or storerooms that don’t need a sophisticated IP handset.

4. Going soft

It may be that in some circumstances you don’t need a phone handset at all, but can rely instead on a softphone. This is a piece of software that runs on a PC or tablet to provide all of the functions of a phone. These are ideal for workers who are on the move and need to access the phone system from different locations. Clients for smartphones are available too, so that mobile users can use the VoIP system.

5. Remote management

Many IP PABXs now allow remote management. This means that you can control the system’s functions from anywhere, via a desktop client. It’s easy to make changes to divert calls, change extension numbers and more from anywhere. This makes for more flexible operation and reduces the need for site visits.