Chemical Etching and Its Benefits: An Overview

Also known as metal etching, photo etching or chemical milling, chemical etching contributes to being the subtractive metal machining procedure in which enchant chemistry is used for the production of highly accurate and complex metal components. This procedure offers an economical alternative to water jet and laser cutting, punching, stamping, etc.
How chemical etching works
Chemical etching is known to work by the lamination of the sheet metal with the aid of light-sensitive photo resist after which it is exposed to the ultraviolet rays for the transfer of CAD photo of the component. The areas of the photo resist that are unexposed are developed or removed after which etchant chemistry is sprayed for the removal of unprotected material. The rest of the photo resist is then stripped for the revealing of the final etched component.
Benefits of chemical etching
Here is a list of few of the benefits of Chemical etching method.
Burr free metal parts
One of the benefits of chemical etching is that it can produce thin and burr-free metal parts. Other procedures can leave the burrs which can interfere with the prerequisite performance of the specific part. Owing to the metal etching process, you do not need to invest in time-consuming and expensive debarring processes, As the photo tool is considered to be the replica of the dimension of the part and does not wear in a similar way to the hard tooling, maintaining the tighter tolerances are easy.
Affordable repeatability
The tooling is known to be designed for yielding different pieces as the specific part design will allow. Owing to the repeatability, the production runs of large size involve a reduced cut off from the pocket, in comparison to laser and stamping. In addition to this, it is possible to etch part number, company logos or any identification marks without any additional cost.
No change in the properties of the metals
Though the other machining procedures bring a change in the metal properties with mechanical stress or heat during production, the internal structure of metal stays unaltered at the time of using the procedure of photochemical etching. There is no impact on the ductility, grain structure and hardness of the metal. This is highly significant for the functionality of different product applications.
Metal etching tooling is known to develop with the aid of mylar film on the photo plotter. In addition to this, it takes an ample amount of time for the generation of the tooling. This affordable process let the tooling engineer perform experiments with different designs, thereby making it easy to modify and reduce the project time in a significant manner. The flexibility of the tolling enable the revisions of the future part if required, thereby making it a suitable option for short turns or prototypes.
Chemical etching method is used on an extensive scale across a plethora of industries for accomplishing the precision metal part requirements. It is possible to produce burr-free, stress-free and complex components from scratch within the time duration of a few days. The chemical etching procedure can be applied to a bunch of materials such as mild steel, spring steel, tool steel, nickel alloys such as alloy 42, MU-Metal, Inconel, etc.

Health Monitoring Successes Today

People will often keep track of their heart rates, at least at certain points throughout the day. It’s common for people to check their pulses after exercising or before exercising. Doctors will also keep track of a patient’s physiological data, at least at doctor’s appointments. However, under this system, both parties will receive incredibly limited amounts of physiological data. Mobile patient health monitoring can give doctors much more data to work with. Patients will have a better idea of what their general health is really like.
Mobile health monitoring has plenty of other applications. Learning about how a person’s vital signs are changing in the moment can make a huge difference in a lot of different contexts. Researchers will be able to use this data during projects that they’re working on, and they will be able to acquire so much more data in the experimental part of the process. Mobile health monitoring supplies have already managed to revolutionize clinical trials.
It’s possible to gain information related to a patient’s skin temperature, physical position, heart rate, physical activity, and breathing rate through the use of a health monitor. Many patients are only really able to measure their own heart rates, and they have a difficult time getting information about their vital signs in any other way without the right equipment. Heart rate monitors themselves will almost always be more effective anyway, since most people will tend to make small mistakes when trying to record their heart rates for themselves.
Patients will be helped by mobile health monitoring directly and indirectly. Since this is technology that has helped so much in clinical trials already, the clinical trials may be that much more successful. Patients will certainly benefit from the subsequent medical advances.

Evaporative water cooler

Factors to Consider in Selecting Evaporative water Cooler
Ensuring that your indoor environment is cool and comfortable during summer tends to be a frustrating and costly task. Evaporate water coolers provide an environmentally friendly, healthy and economical alternative to the traditional air conditioners. Here are some of the things you need to consider when looking for an evaporative water cooler.
Will the appliance be effective in a local climate?
Evaporative water coolers tend to be effective in areas of high temperatures. Additionally, they are effective during the hottest time of the due when the relative humidity drops below 50%. The appliances are always ineffective in warm and moist climate because of the higher humidity percentage in the atmosphere.
Are cooling expenses your concern?
The initial cost of the appliances is mostly less than other cooling devices because of its simple design that leads to easy maintenance and speedy installation. Additionally, energy consumption is limited to the pump and fans.
Is ecological effect a decision making aspect?
You will only need water, and the appliances don’t use toxic refrigerants such as ammonia and CFCs. Low power costs will lessen the carbon footprint of evaporative water coolers like other cooling techniques.
Is the additional humidity produced by evaporative cooler a problem?
These appliances tend to work effectively in dry environments where extra humidity can be helpful in enhancing comfort by averting dry eyes or skin also assist in alleviating allergies and asthma.
Can the apartment be ventilated during cooling?
Evaporative water coolers can’t work correctly with constantly exhausting the source of air from the conditioned region to the outside. This prevents the accumulation of moisture in the area. This implies that the appliances can be used while the doors and windows are open, unlike other standard air conditioners that work correctly on a closed space. The open ventilation needed by evaporative water coolers brings fresh air which eliminates the air pollutants and germs from the building.

Air Source Heat Pump Installers

It is important to make sure that your heat pump is properly installed for two reasons: the first is that heat pumps are not cheap and you don’t want to have to buy a new one because yours was botched during installation. The second is that you want it to work properly – the last thing you want to do during the cold months is run around looking for someone to come in and fix a new but broken heat pump.
There are many heat pump installers in Cambridge and East Anglia but not all of them are as good as they claim to be. You might hire one just because they tell you that they can get the job done only to be surprised when they fail to deliver. The best way to tell whether an installer is any good is to look at their performance record. Ask them to give you the names of at least 3 references of homeowners who have properties similar to yours. Talk to them to find out whether the work was done properly and ask them if they would hire the same installation company again.
Before you hire a heat pump installer you should make sure that they are properly certified. They ought to show you their certification documentation and they should also provide proof of membership of one or two professional associations. Associations are important because they assure quality of work – members have to live up to their rigorous professional standards and if they don’t they are blacklisted.
Lastly, make sure that you hire heat pump installers who are properly insured. They should show you proof of insurance before they can begin the work.
We recommend Elliots – they are one of the best heat installers for East Anglia and they always deliver. Find out more on