Category Archives: Engineering Tech
What is a PP Sheet?
PP sheet stands for Polypropylene sheet, a thermostatic polymer produced in large amounts by the chemical industry. It has been used in a multitude of industries, ranging from the plastic industry to the textile industry due its many benefits. In addition to usability in the workplace, these sheets are also capable of use at home.
Home Uses for PP Sheets
Around the house, there are five major uses for the sheet.
1. Plastic products used at homes such as cups, bowls and even lights and fans are all comprised of some kind of Polypropylene. Indoor carpeting uses the sheets as one of the materials that allow it to last so long.
2. For those with outdoor swimming pools, the sheets are an essential component of the design. They are waterproof and, therefore, will last far long than any other material. Also incredibly useful for indoor carpeting, as spills are common but no longer a problem due to the waterproof nature of the sheets indoor carpeting is made with.
3. Food storage is essential, and keeping bacteria from infecting the food and causing illness is the most important aspect. The sheets are naturally resistant to bacteria and are even capable of reducing it within the foods stored in a container made from these sheets. This makes it a top choice for storage and will greatly contribute to the overall health of the household in which the sheets are utilized. Better still they can store band-aids and other medical supplies to prevent the minor cuts and scrapes that occur in everyday life from getting infected and causing other problems.
4. Pliability is perhaps the strongest feature. Used indoor handles and hinges alike, and even in coffee cups, the sheets can withstand a great deal of wear and tear that not only assures their versatility but also ensures a long lasting shelf life as well. They are sure to withstand the test of time and maintain their function, without it, they become brittle and are no longer useful.
5. Customization is the last important aspect. Home products are typically very generic and uninteresting to have around the house. Because of the mouldable nature of these sheets, the colour and shape can be drastically changed in order to make the item far more unique. This allows a little variety at home and can make things seem quite a bit brighter around the house.
By using such sheets to their fullest potential, one can prevent all sorts of issues, ranging from various health related reasons such as infections and food contamination to things as simple as spicing up the place with a little bit of customization tin the design. All in all, purchasing a material made from the Polypropylene material is a smart investment that will last quite a long time and optimizes many areas of your life around the home.
Cathodic protection is an important step that every homeowner and business owner should take because it really does make a huge difference. Unfortunately, not many people are aware what cathodic protection even means or what it involves. Check out some of the most commonly asked questions about cathodic protection below:
1. What is Cathodic Protection?
Cathodic protection is a method used to help protect metals that are buried deep in the ground from corroding. This is done through either turning the corroding metal into a cathode by an impressed direct current or attaching the metal to a galvanic anode. When cathodic protection is performed well through an impressed current, there must be an external power source employed like solar or AC. This method is also generally applied to those metal units that have large surface areas like storage tanks and transmission pipelines. With galvanic cathodic protection, though, it is all self-powered. That means it is the simplest type of cathodic protection. It’s typically used on metal units found in a soils environment. However, this method can also be employed to those bigger structures found in sea water.
2. How Do We Know That the Cathodic Protection is Effective?
Cathodic protection has been employed for many years to protect underground pipelines, offshore oil platforms,antifouling, shaft grounding found in ship hulls and underground steel storage tanks. That’s because many of these units are exposed to marine environments that are full of ballast water that causes corrosion. With all these years of employing cathodic protection, it’s clear that it really does work to protect your units from corrosion.
How Cathodic Protection Works?
3. Is There Any Maintenance Required Once the Cathodic Protection System is in Place?
As soon as the cathodic protection system is installed, you’ll need to get routine maintenance performed on it. This is typically done yearly. That’s because there is always the possibility for something to go wrong over time. However, with this routine maintenance, you are ensuring for any problems to be caught early on. For those impressed current systems that are used, the maintenance involves a visual inspection of the unit and checks regularly after that. With all the new forms of technology, though, many individuals opt for remote monitoring systems. They feel this is a much more convenient way of having their systems maintained.
4. Does Cathodic Protection Involve a Lot of Electricity?
Many individuals are under the assumption that cathodic protection systems use up a lot of energy since they run continuously. Even though they are left on 24 hours a day, this is not the case. Actually, very little energy is used with your cathodic protection system. That’s because most cathodic protection systems only use between 100 and 1,000 watts of power. This makes having one of these systems much more affordable.
5. Do Cathodic Protection Systems Have to be Installed by Professionals?
While there is always the option to install your own cathodic protection system, this can be extremely risky. Unless you have the proper training and certifications, installation and maintenance of your system should be left to the experts.
Simply put, corrosion is defined as the process or action of corrosive chemical behaviour, which is a progressive modifi-cation or deterioration due marine growth prevention system, antifouling system, copper anodes
to chemical oxidation.
When it comes to certain job responsibilities and daily tasks many people associate the process of corrosion to the wasting away or rusting of a pipe that’s buried beneath the ground. And so, corrosion can be thought of as the way natural forces continuously try to restore the developed works of humans to revert back to their original state of natural symmetry. Therefore, when it comes to a buried pipe, the process of corrosion is the earth and surrounding natural elements simply trying to restore the existing iron within the steel pipe to its original constant form of native iron ore or iron oxide.
The kind of corrosion that most people are familiar with and the kind that causes the most amount of damage to a buried pipe is known as electrochemical corrosion. This type is also commonly referred to as galvanic corrosion and sometimes known as electrolysis.
Using Anodes in Cathodic Protection
‘Sacrificial anodes’ are often used in cathodic protection systems. The anode consists of metal alloy containing a more active voltage than the structure’s metal it’s protecting, or the cathode. When it comes to potential, the difference between either metal indicates that the material of the sacrificial anode will corrode rather than the structure itself. This process successfully stops how the oxidation process reacts to the structure’s metal that’s being protected.
Also, there needs to be two other existing conditions in addition to the cathode and anode in order for the sacrificial anode process to work. Essentially, there needs to be a return existing path for the electrons to properly flow from the said anode to the targeted material it’s intended to protect (physical contact is the most common way) and an electrolyte (i.e. humidity or water) to transmit the electrons.
Sacrificial anodes usually come in three different metals: zinc, aluminium, and magnesium. Of the three, magnesium contains the most negative electro-potential and is more appropriate for on-shore pipelines since electrolyte (water or soil) resistivity is considerably higher. However, if the difference in electro-potential is too much, the cathode (protected surface) can possibly become brittle or sometimes cause the coating to “disbond”.
Aluminium and zinc are typically used in salt water since the resistivity is usually lower. General uses include the hulls of boats and ships, in salt-water-cooled-down marine engines, inside the walls of storage tanks, on small boat rudders and propellers, and on offshore production platforms and pipelines.
The main benefits of using sacrificial anodes include the following:
• Easy to install
• No external power source required
• Overprotection is highly unlikely
• The low voltage and current that runs between the protected surface and the anode rarely produces stray current
• Monitoring and inspection is easy for trained staff
On the other hand, there are some disadvantages as well such as a restricted current capacity relative to the anode’s mass, ineffectiveness regarding high-resistivity environments, increased water and air flow on moving structures (i.e. ships), and more weight on the structure being protected as well. Find out more at www.cathodicme.com.
Few would argue that the forklift is an indispensible piece of equipment in a warehouse or manufacturing environment where heavy materials need to be moved for production, shipment and other purposes. One problem that many businesses face is that a forklift can be a significant investment, particularly for a small business or one that’s just trying to get off the ground.
Almost everyone prefers to purchase an item in brand-new condition but deciding to buy an item used normally represents a significant savings, and it is often possible to get years of service even from a used item. This is no less true for forklifts than it is for any other item. A good second-hand forklift or hand pallet truck might last nearly as long as a new one.
There are numerous places one can look when looking to buy second-hand forklifts. Contacting other local businesses might be a good place to start. Newspaper ads and online classified websites are another excellent source of used equipment for sale.
Retailers that sell new forklifts may also have some second-hand units for sale and even if they do not, there is a chance they will know who does. One possible advantage of buying a used forklift from a dealer is that they have probably inspected the unit thoroughly and can tell you what kind of shape it is in. They also might include a warranty and offer financing as well.
Buying locally is often the best course of action whenever possible, since transporting a forklift could add significantly to the cost, depending on the size and weight of the unit. It is also easier and less time-consuming when you decide to go check out a potential candidate for purchase in person. Buying something like a forklift without first inspecting it carefully is not recommended.
Forklifts come in many shapes and sizes, from a simple hand pallet truck for handling light-duty jobs to a heavy-duty motorized unit than can lift several thousand pounds. Knowing exactly what type of work a forklift will be called upon to do is mandatory before the selection process can begin.
It’s also advisable to keep the future in mind. A business that is just getting started may find that their workload increases significantly as they become more successful, and they may even find themselves dealing with new products and materials they might not have anticipated.
Taking some time to research the various types of forklifts that are available will make the selection process faster and easier. A few hours of researching on the internet should provide the information required to make an informed decision.
Being informed will also be a great asset when the time comes to talk about the price of a second-hand forklift. Getting a good deal can be a hit-or-miss proposition if the buyer is not able to negotiate with a good understanding of the product.
A little research and some time spent searching for a reasonably-priced forklift that is in good condition will probably give the smart buyer years of dependable service from a second-hand forklift.
What would you do after getting a forklift? See How to Obtain Forklift Handling Certification
The hot water heater is a crucial element of running a home that often performs without notice. That is, until it stops or begins to make funny little noises. Due to homeowners being basically inattentive to them they go far too long without proper maintenance.
Lots of people simply wait for their hot water heater to start making these funny noises before taking any action. At that time they believe it is time to replace it. This is great for shady salesmen but that doesn’t make it true. It can be sediment buildup causing the hot water heater to make those noises.
Sediment buildup happens over time as minerals that occur naturally in your water build up causing the deterioration of the sacrificial anode.
In hot water heater terms the ‘sacrificial anode’ is a metal rod designed to corrode gradually over time. It can be made from aluminum, magnesium, or an aluminum/zinc combination. The water within your tank will set off an electrolytic reaction causing the exposed steel to fail. In order to protect the steel a magnesium or aluminum rod that is more reactive will corrode in its place. Once this anode has corroded then the steel within the tank will start corroding itself. Then your tank is headed toward failure.
Common sense dictates that if you replace this anode regularly then the steel within your tank will stay protected. Usually they need replacing around every 3 to 5 years. This prolongs the life of your hot water heater.
The sacrificial anodes work by being screwed directly into your tank usually near the top. That way they are more easily replaced. They are quite long and require substantial room for clearance when removing them from your tank.
It will depend on what type of anode you get as to how often it will need replaced. Some are more expensive than others but will not corrode as quickly. Many people warn against the aluminum anodes. They are cheaper but come with a whole other set of problems like breaking or contaminating your water.
There are some tanks that utilize 2 anodes. They will have the conventional anode placed at the top and also an outlet anode either at the top as well or down at the bottom of the tank. They should be replaced together simultaneously and the same metal types should be used.
They should never be mixed or matched separately. Regular replacement of your sacrificial anodes can get you many more years of use from your hot water heater without having to replace it. Some good information can be found at www.cathodicme.com online.
Recommended Reading of The Week: Understanding the Importance of Cathodic Protection in Marine Engineering
Green printing is one good way to support environmental preservation. There are big improvements in technology nowadays that harm the environment. People tend to forget nature’s value and still do nothing to preserve it. Why not put together technology and ecology? Green printing is the answer to that. One example of a green printer is the UV printer. It utilizes 100% recycled paper, and the ink it uses is made from earth-friendly materials. In terms of quality, it produces high resolution, full-color pictures and letters that are waterproof, don’t easily fade, and have been proven to last long. A UV printer can be used for flyer printing, tarpaulin drawings, digital images and many more. That’s how technology and nature must work together hand in hand.
Being an an earth-friendly person, me and my friend Chee Yew Wen highly support and recommend this product. It promotes innovations in technology the positive way, without putting too much stress to the environment. This is the only planet that supports life; therefore, it is our responsibility to take good care of it. Let’s not put other’s lives at stake for our own personal sake because, in the end, it’s not worth it. Let us be environmentally conscious and support green drive.
10 ways to “GO GREEN”