Stainless steel sheet is produced by rolling the material through a mill, creating a thinner and longer outcome. Thickness is gradually reduced through this process and the stainless steel product is wound into a coil at the end of the production line or cut into plates. Stainless steel coil can then be cold rolled in cold rolling mills. The coils can be heat treated in a furnace to further soften the material for cold rolling or to produce the mechanical properties desired.

Hard hats have?come a long way since shipbuilders would cover their hats with tar to create a layer of protection from tools and objects falling from ships.?Today, the hard hat has become an iconic symbol to represent the construction industry.?Hard hats?are?typically?made?of polyethylene?and?additional?accessories such as shields, visors, hearing?protection and lights can be attached.?OSHA?requires?that?head protection must be worn whenever working in an area with potential injury to the head from falling objects.?Signs reading, “Hard Hat Required,” welcome each worker?to the?site, where every individual is wearing one, regardless of?their?trade or the task they are doing. And while hard?hats?have?typically?been?the longstanding?go-to?choice?for protection?against permanent, life-changing injuries or death,?more and more,?they?are being replaced by safety helmet. These helmets,?derived from the ones used in?extreme sports such as rock climbing or even?whitewater?rafting,?attach?more closely?on the?head?and?have?built-in chin straps.?This?‘helmet revolution’?has?some?safety managers?looking beyond the typical hard hat when?choosing?the best protective headgear to fit?their?crews’?needs while keeping them safe?on the job.
The Importance of Head Protection
“Because they extend down from the forehead, shields protect the eyes as well as the nose and mouth,” says pediatric infectious disease specialist Frank Esper, MD. The coverage that face shields offer is ideal since the new coronavirus can enter the body through those points. We provide many protective products.
Are face shields effective?
A 2014 study showed that when tested against an influenza-infused aerosol from a distance of 18 inches away, a face shield reduced exposure by 96% during the period immediately after a cough. The face shield also reduced the surface contamination of a respirator by 97%.“It protects you, the wearer,” Dr. Esper says. “But if you cough, because the face shield is away from your face, those droplets can still get out better than if you have a mask on.”
Are face shields good fo
For most repair projects and activities around the home, it's enough to wear safety glasses that meet the criteria set by the American National Standards Institute (ANSI). For many work situations, that same protection is enough, but there are important exceptions. Sports eye protection should meet the specific requirements of that sport. The sport's governing body may set and certify these requirements. The American Society for Testing and Materials (ASTM) may as well. In some cases, both organizations may be involved.
At Home: Safety Glasses, Goggles and Other Protective Eyewear
Every household should have at least one pair of ANSI-approved protective eyewear. You should wear it when doing projects or activities that could create a risk for eye injuries at home.
Choose protective eyewear with "ANSI Z87.1" marked on the lens or frame. This means the glasses, safety goggles or face shield meets the American National Standards Institute (ANSI) Z87.1 safety standard. You can buy ANSI-approved protective eyewear from most hardware stores nationwide.
You should use eye protection if the activity involves:
When workers are exposed to loud noise, earplugs can offer low-cost, effective hearing protection. These are soft foam or elastic plugs worn inside the ear canal to help block out hazardous sounds. Earplugs come in a wide variety of shapes and sizes so there are many choices for workers. With the right fit and insertion techniques, earplugs can provide adequate protection for many types of noisy situations.
Disposable foam earplugs are the most widely used type of HPD. The soft foam is rolled into a tightly compressed cylinder then inserted into the ear so that it conforms to the unique shape of ear canal. They are relatively low price per pair and can result in a high noise reduction when worn correctly.An oil warning light should also be taken very seriously. It means your oil level in the engine is low or that the oil pump is not circulating oil properly and at the correct pressures. In either case, engine damage is likely to occur and the vehicle should be inspected to determine the cause of the problem. You may have a minor oil leak, a malfunctioning oil pressure sensor, restricted oil passages, an improper oil level, or a number of other mechanical issues.

Let’s consider why pet food may be a good or bad choice for your pet, starting with ‘the good.’
The Good
Propylene Glycol (PG) is a humectant (moistening agent) found in some soft dog foods and treats. It is chemically derived from ethylene glycol (EG), also known as antifreeze, which is extremely toxic to animals.PG is touted as non-toxic and non-absorbent for your pet, but consuming ‘pet-safe’ antifreeze’ will not improve your pet’s health. We also provide many other pet products.
Why some dry dog foods could be hazardous for your pet’s health
There’s very little oversight into what goes into pet feed, the authors write. A bag of dry dog food needs to contain only 25 percent of the meat listed, so long as the packaging contains a descriptor such as “dinner,” “formula,” or “platter.” If one of these descriptors is used and water is added for processing, as is the case with canned food, the food must only contain 10 percent of the specified protein. And, the authors write, diseased, or disabled animals — is allowable, as are additives like melamine, peanut shells and dehydrated chicken feces.
“We’re using our four-legged family members .?.?. as walking recycling machines,” Chavez, an adjunct professor of veterinary clinical nutrition at California State Polytechnic University, Pomona, told The Post. “Everyone has this illusion that [the pet-food industry is] super tightly regulated and controlled. And that’s just not the case.”
Veterinary nutrition is a relatively new field. Cornell University, with one of the top vet schools in the country, does not require students to take a course in animal nutrition to graduate. Plus, large pet-food companies actively court veterinarians and their loyalty, donating huge sums to schools and providing discounts to students.
Wet vs. Dry Cat Food: Which is Better?
If you’ve wondered which is better when it comes to wet vs. dry cat food, they’re both excellent choices. Just make sure the food you select is 100 percent complete and balanced for your cat’s age and life stage. While some cats (and cat owners) prefer one over the other, the best option may be to feed your cat both.
Wet Cat Food
Shop Wet Cat Food
If you’ve never tried feeding wet cat food, explore the wide variety of options Purina offers. You may need to try several brands until you find a couple your cat likes. Fortunately, Laflamme reminds, “there are hundreds—if not thousands—of good quality cat foods available at grocery stores, pet specialty stores, online and through veterinarians.”
It’s also a good idea to try a few different serving methods. Some cats prefer their wet food “fluffed” and served on a flat plate or wide, low-edged bowl. Others will eat straight out of the can. Once you find a food and serving method your cat loves, she’ll enjoy eating a mix of wet and dry cat food on a regular basis.
Litter Matters Because of Texture
A big issue for cats is the texture of the litter. If a cat litter is too rough or the granules are too big, a cat will reject it because it doesn’t feel good under their paws. Remember, they love to dig around in their litter before and after they go, and if the litter is too harsh, they’ll reject it in favor of something else… like your favorite blanket.
Litter Matters Because of Smell

In this article, we are going to introduction the technology of Fiber Laser marking Machine, understand its scientific background, its applications, materials targeted and its challenges.
After reading this article, you should be able to discern how best to use this machine for your own applications.
Understanding Fiber Laser Marking
Integrated circuit elements are the most important units used to build circuits and systems. This Laser marking machine can be used to make markings on Integrated Circuits boards and semiconductor components, including text and graphics.
The Laser Cutting Machine and ProcessLaser cutting of metal has been around for a couple of decades now, but there still appears to be some confusion of which laser is suitable for which application. Although metal can be successfully cut using plasma or water jet cutting machines, when it comes to accuracy and consistency it has to be a fiber laser cutting machine.
There are multiple modes of laser welding that we can categorize the machines into. Therefore, we can categorize laser welding technology in various ways. Let’s start defining the laser welding machines by the different categories:
Categorization is based on the type of laser
Pulsed Laser
Fiber Laser Welding Machine
The fiber laser welding machine is ideal for working on metallic parts. Furthermore, it offers great reliability and efficiency. According to estimates, the accuracy of the laser welding machine using fiber laser is close to 25%.
CO2 Laser Welders
Introduction
Laser cleaning machine is finding great applications in the industry today. It is often seen that rust, grease, and other such substrates form a layer with time over metals and non-metallic products. And with increasing time the laser rust cleaning and metallic parts cleaning technologies have evolved.
What is Laser Cleaning Machine?

How does a TFT module operate? First, TFT stands for “Thin Film Transistor,” and it describes the control elements that actively control the pixels. Because of that, you hear a lot said about active matrix TFTs. How do the images get produced? It operates on a basic principle. You have the TFT LCD display, which has many pixels, and each pixel has the ability to reveal differing colors.
To learn more about TFT LCD display or TFT technology, get in touch with manufacturers such as Microtips Technology. So Contact Microtips Technology Representative today to find out which LCD module is best for your needs.
What is an OLED?
An OLED display have the following advantages over an LCD display:
Improved image quality - better contrast, higher brightness, fuller viewing angle, a wider color range and much faster refresh rates.
Lower power consumption.
Simpler design that enables ultra-thin, flexible, foldable and transparent displays
Better durability - OLEDs are very durable and can operate in a broader temperature range
Surface Mount Adapter Boards
SOIC and TSSOP-packaged ICs can be great for finished products; they take up much less real estate and allow the end product to be more easily manageable from a size perspective. During the design phase, it's much more convenient to work with ICs without needing a magnifying glass. The SOIC/TSSOP-to-DIP adapter board has both footprints on either side of the board so that you can design with either package without needing to purchase another adapter board. It comes in 8, 16, and 28-pin footprints and can easily snap apart at your convenience.
For those who want to work with more than just SOIC and TSSOP packages, the multiple footprint adapter board can accommodate SOIC, SOT, TO, TSSOP, as well as various SMT passive component packages. Just solder on some headers and you're ready to go.
If you look at the personal electronics market, you might assume that emissive displays such as organic LEDs (OLEDs) or micro LEDs are the best way to achieve the ideal automotive display. But numerous design and fabrication challenges – including lifetime, cost and peak brightness concerns – have delayed the implementation of OLED displays in automotive systems.
How can automakers meet modern display expectations? A full-array, locally dimmed backlight architecture has the potential to improve the contrast ratio of LCDs to near-OLED levels, while consuming less power than traditional backlight methods.Outdoor LCD displays need also to cope with sunlight. Because of the sun’s brightness and its ability to make a standard screen unreadable, an outdoor LCD display is often several times brighter than an indoor LCD. LCD brightness is measured in nits (a unit of luminance) and most indoor screens have nit value of around 400; outdoor displays on the other-hand have a nit value exceeding 1200, giving them the power to cope with even the brightest of sunshine.

The principle of the SVG static var generator is very similar to that of Active Power Filter, as demonstrated in the picture below. When the load is generating inductive or capacitive current, it makes load current lagging or leading the voltage. SVG detects the phase angle difference and generates leading or lagging current into the grid, making the phase angle of current almost the same as that of voltage on the transformer side, which means fundamental power factor is unit.
Delta’s PQC series SVG is also capable of correcting load imbalance.
SVG Structure
Delta PQC Series SVG static var generator is also modular in design, and the Delta SVG system consists of one or several SVG modules and an optional Liquid Crystal Monitor & Control Panel (LCM). Each SVG module is an independent reactive power compensation system, and users can change the SVG rating by adding or removing SVG modules.
SVG modules and LCM panel can be embedded in Delta’s standard SVG cabinet or in a customized cabinet. There are usually breakers, cable terminals and Surge Protection Device (SPD) in the SVG cabinet.
Active harmonic filters are more of a system solution. How do they work?
Harmonics come from the nonlinear load. Active harmonic filter, also called harmonic correction units, is parallel devices that act like a noise cancellation system and inject equal and opposite frequencies to mitigate harmonics. The filters can also provide additional current to correct the power factor. So, what’s left coming from the source flowing back to the utility is only a nice, clean current that is in phase.
For example, if we run four 6-pulse variable frequency drives at the same time, we have a harmonic spectrum of 5th and 7th and 11th and 13th harmonics. The waveform will show a significant amount of harmonic current in the total harmonic distortion. When the active harmonic filter is turned on, it will inject equal and opposite harmonics to cancel what’s there. The waveform now will be clean and in phase. If we go back and look at the harmonic spectrum, the current distortion is very low.
Active harmonic filters can effectively cancel harmonic distortions from the network. This blog post will explain the key criteria that should be kept in mind when buying an active harmonic filter.
1.1. Inverter topology
Interharmonics are usually caused by synchronization issues. If the installation includes interharmonic sources, the manufacturer should be consulted as not all AHFs can deal with this. It is a common issue with cycloconverters or some types of older wind turbine generators.
1.5. Harmonic compensation capacity
AHFs are offered in a range of voltages, most common is 200V up to 690V. Some manufacturers can produce AHFs for higher voltages, up to 1000V, without step-up transformer, reducing costs and footprint. It is possible to connect AHFs to high voltage (over 1kV) systems using a suitable step-up transformer. Step-up (or step-down) transformers can reduce compensation performance due to increased impedance between the AHF and network.
1.10. HMI

To ensure dust collector bags are functioning properly, you need to perform periodic inspections, as well as repair and replace damaged or malfunctioning equipment. A routine inspection and maintenance program will boost your equipment's performance and life. To maintain the health and effectiveness of your dust collector, follow our helpful list of procedures.
1. Create an inspection/maintenance program — A typical program consists of a schedule for periodic inspections that are performed on a daily, weekly, monthly, semi-annual and annual basis. Failing to periodically inspect the dust collector can hurt its performance. Subsequently, the dust collector may not meet EPA outlet emissions standards.
The welding of the filter bag cage is not standardized. The unevenness of the welding frame of the filter bag cage or friction with the cabinet will cause the dust filter bag to be worn out during shaking. Generally, the uneven surface of the filter bag cage refers to burrs or edges at the welding place;
The dust bag installation is not standard. The dust filter bags are too loose when suspended, which may cause the dust filter bag to collide or friction with other components, resulting in damage to itself;
The disassembly and assembly of the dust filter bag is not standard. When the dust filter bag is disassembled or installed, it is likely to collide with metal edges and wear the cloth bag. This kind of injury is not easy to detect, but ash will appear during work;
The general process of developing any filter media should begin by identifying the application requirements. Then specifications are determined for not only the finished media grade, but for the final filtration product in which the dust filter media grade will be incorporated (i.e. cartridge, panel, or filter pack).
Factors to be considered in media recipe formulation include: a cost level which makes sense for the market; minimum efficiency levels needed to achieve acceptable emissions; the type and amount of material being filtered from the fluid stream by the media filter; and the physical environment to which the media will be exposed. Other factors include: pressure, vibration, temperature, humidity, and chemical composition of contaminants.
Some manufacturers are so serious about providing exactly what the customer needs they offer hundreds of choices to the market, each tailored to meet specific challenges and requirements. If an appropriate media does not exist for an application, new media development may be undertaken.
#5: Evaluating dust collection manufacturers pays off.

Crystal oscillators are able to provide a much better level of performance than that provided by LC resonator circuits. Nevertheless crystal oscillators are still affected by temperature.
The angle of the cut and other aspects of the quartz crystal have a major impact on the performance.
As a result special cuts are defined and one known as the AT cut is the most widely used for these and many other quartz crystal RF applications. This gives a good level of performance for RF circuits in terms of suppression of unwanted modes of vibration as well as the frequency range available, and also the temperature stability.
A TCXO adjusts the frequency of the oscillator to compensate for the changes that will occur as a result of temperature changes. To achieve this, the main element within a TCXO is a Voltage Controlled Crystal Oscillator, VCXO. This is connected to a circuit that senses the temperature and applies a small correction voltage to the oscillator as shown below.
INTRODUCTION
The history of the development in crystal filter technology, from the initial concepts of Cady to the current wide range of products, provides a fascinating chapter in the development of today’s highly complex electronic products. The crystal filter has been a particularly critical element in the development of narrowband communications systems. The desire to send multiple voice messages on a single telephone line resulted in the introduction of carrier telephone systems in 1916. These early systems used LC filters in the 10 to 40 kHz frequency range. However, the bandwidth limitations caused by realizable coil Q’s were quickly recognized. In 1929, W.P. Mason of Bell Laboratories developed methods for incorporating crystals into LC lattice filter networks. This work resulted in the development of a 60 to 108 kHz basic group-band filter set used to frequency multiplex 12 voice channels. This work is described in Mason’s 1934 paper which was the basis for essentially all crystal filter designs generated during the next 20 years. During this period the major application for crystal filters was in carrier telephone equipment. However, in the mid-1950s, newer narrowband radio communications systems were developed both for military and commercial use which required high-frequency, stable, narrow-bandwidth filters. In most cases, crystal filters were the answer for these filtering applications and a new manufacturing industry was formed to supply these needs. Other applications quickly followed in navigation and radar equipment, in new fire-control systems, and missile control systems. This increased level of activity resulted in new filter design procedures and substantial improvement in the quality of high-frequency filter crystals.Locally manufactured ceramic filters have traditionally been used throughout the world to treat household water. Currently, the most widely implemented ceramic filter is the Potters for Peace design. The filter is flowerpot shaped, holds about 8-10 liters of water, and sits inside a plastic or ceramic receptacle.
What Is a Ceramic Resonator?
A ceramic resonator is an electric component that exhibits a series resonant and a parallel resonant center frequency. It exhibits a piezoelectric characteristic that makes the ceramic material generate minute electrical energy when subjected to electromechanical expansion and compression. The resulting mechanical energy component produces the electric component and vice versa, and the result is a complex reactance that leads to resonance observed as the characteristic of having a center frequency. Materials such as lead zirconium titanate have a ceramic piezoelectric characteristic.
Oscillators are electronic circuits that generate periodic waveforms. The ceramic resonator may be used as a frequency reference in the electronic oscillator, wherein the accuracy of the resulting frequency is not as high as in the crystal oscillator. Error in frequency for the ceramic resonator circuit may be as high as 5%, while that for the crystal oscillator is less than 0.1%.

Humidifier adds moisture to the air, which can benefit people with respiratory symptoms or dry skin.
There are several ways to use humidifiers in the home or office, but there are also some risks.
In this article, learn about the benefits of humidifiers, how to use them correctly, and precautions to take.
While most humidifiers have the same basic function, to add moisture to the air, many types are available:
Steam vaporizers: These use electricity to create steam, which cools before it leaves the unit. However, there is a risk of burning the skin, and people should avoid using steam vaporizers around children.
Ultrasonic humidifier: Instead of electricity, these units use vibrations to vaporize water.
Evaporators: These produce humidity by blowing air past evaporating water.
Impeller humidifiers: These are generally child-friendly and use rotating disks, rather than heat, to vaporize water.
Central humidifiers: A person connects one of these units to the central air conditioning in the home or office to add moisture to the entire space.
Sizes can vary. Console humidifiers are large enough to add moisture to an entire house or office, while personal humidifiers are portable and easy to carry.
What is an Industrial Humidifier?
An industrial humidifier is a system that is capable of providing adequate humidity levels in a manufacturing environment. High-speed production processes add to the heat load in a building, bringing down the humidity. This can lead to a dangerous buildup of static electricity in a plant where dust and other flammable materials may be in the air. Processes such as woodworking, printing, and electronic and microchip fabrication, — which involve gluing, coating, and bonding — benefit from
What Does a Dehumidifier Do?
A dehumidifier is an appliance that takes moisture out of the air in your home.
If you or your family members have asthma or allergies, a dehumidifier might help relieve symptoms and make breathing easier.
This article will help you decide whether a dehumidifier is a worthwhile investment for your living space.
Lithium Batteries:
The primary requirement for manufacturing of lithium batteries is a dry room with very low humidity. Lithium is extremely sensitive to moisture; thus, high moisture content leads to a reduction in performance and life of the product. Industrial dehumidifier ensures that the processing areas have the required amount of moisture in the air which is less than 14gms of moisture per kg of dry air.

1. Leather industry:
   The Leather is a hygroscopic material; excess moisture leads to the growth of mold and mildew on leather. Without proper humidity control, leather loses its shine, produces the foul smell, loses its strength and starts decomposing. Relative humidity above 40% leads to micro-organism growth that results in decomposition of leather. Dehumidifiers help in providing controlled moisture conditions during the processing of leather products.
   

Shortly after their debut, several manufacturers started selling hoverboard that were not inspected for quality or safety. News reports revealed potential hoverboard dangers — motorized boards spontaneously overheating, catching fire and causing burns. To date, more than 300 of these incidents have been reported to the Consumer Product Safety Commission.
Newer hoverboards don’t pose the same level of fire risk. If you have an older model, visit the Consumer Product Safety Commission to see if there’s been a recall. All hoverboards should be compliant with the UL 2272 safety standard.
However, even if your child has one of the newest models, there are still hoverboard dangers to consider. After all, two-wheeled boards can be difficult to balance on, and falls resulting in injuries are not at all uncommon.
Do you ever daydream about the future? What might the world be like in a few decades? Could there be cars without drivers? Trucks that fly? Boats driving on land and water?
You may already know about self-driving cars and self balancing hoverboard. But what about hoverboards? Picture it: You’re flying down the sidewalk on an object that looks like a skateboard without wheels. You turn a corner, swerve around other people, and get home from school in record time, without ever touching the ground!
Does this sound like science fiction? Think again! Hoverboards are already a reality. But how do they work?

A company called Omni has also created a hoverboard that uses propellers. Their design even holds the Guinness World Record for the farthest flight by hoverboard. It traveled 275.9 meters (905.2 feet). The Omni hoverboard is expected to hit the shelves in late-2021.
Would you like to travel by hoverboard? Do you see a future of these vehicles zooming through the streets? Or do you imagine even better ways of getting around? Anything is possible!
What is an all terrain hoverboard?
Back in 2015 hoverboards hit the market with a bang. These two wheeled self balancing scooters became THE hot product of the year, and although they hit a few blips along the way (inferior quality models with cheap batteries caused some fire problems in the early days), they have only gone from strength to strength since then. In 2016 Underwriter Laboratories introduced the UL 2272 hoverboard certification, so hoverboards are now safer and higher quality than ever. In 2021 technology has advanced to the stage where we now have all terrain hoverboards that can travel over grass, sand, gravel and more (the traditional hoverboards that first came on the market were only suitable for smooth pavement). In this article I’m going to be discussing which is the best off road hoverboard available today.
Hoverboard? Still in the FutureUnfortunately, his invention is not really a new hoverboard. Bob Gale, who wrote the “Back to the Future” trilogy, said that, in his imagination anyway, the hoverboard floats on a magnetic field similar to magnetic levitation trains.Continue reading the main story