A Brief Introduction to the Planetary Speed Reducer

The planetary reducer is an industrial product which has a wide range of applications. Its property can compare beauty with other military speed reducers, but its price is equal to the price of the common industrial goods. Therefore, it is very popular in a lot of industrial fields.

In the passage some basic concepts of this speed reducer will be introduced in order to help people get a general idea quickly. What comes first is about its series. It refers to the series of the planetary wheel. Sometimes, because a set of planetary wheels can not meet the relatively big transmission ratio, there is need to increase one or two sets of the wheels in order to satisfy the requirement of the transmission ratio. With the increase of the gears, the length of this speed reducer will correspondingly be increased and the efficiency will be reduced to some degree. The next concept is about backlash. The so-called backlash means a tiny angular displacement. The unit for this backlash is “minute”, which means sixtieth of one degree. Back clearance is another name.

Since people get some ideas about this speed reducer, it is turn to talk about its functions and features. As far as we know, the main transmission structure of the planetary speed reducer includes planetary wheel, sun wheel and outer ring. Compared with other speed reducers, the planetary reducers are characterized by the following features, such as high rigidity, high accuracy, and high transmission efficiency, high ratio of twisting moment and cubage and maintenance for life. On basis of these features, most of the planetary reducers are installed on the stepper motor and actuating motor.

Their main functions are to reduce the rotating speed and increase the torquemoment. They also play an important role in matching the inertia. What’s more, it has also other unique features besides for the above-mentioned merits. Its cubage is quite small, its weight is light, its loading capacity is high, its service life is long and its operation is very stable without loud noise. Owing to its different features, it is indeed very popular in different fields, such as engineering plant, metallurgy, mine, petrochemical industry, construction machinery, light industry, automobile, ship and weapon. The temperature of this reducer ranges from -25 to 100 Celsius degrees. At the same time, the working temperature can be changed through changing the lubricating grease. All in all, this reducer is very popular in the industry.

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Oil Seals

In terms of an oil seal, there are a lot of different types. Depending on how they are constructed, U-ring oil seals as well as block vee rings can be used as a rod seal, a piston seal or even a symmetric seal. U-rings and block vee rings are called single acting seals, also known as unidirectional seals, and have to be mounted back to back in cylinder applications that are double acting.

A Block Vee seal is really more compact and performs better under high pressure conditions than a U ring does. V ring seals are made of all rubber and are primarily used to get rid of dirt and other types of contaminants. V rings are stretched over a shaft and sealed against the side of housing or another type of machine component. Besides, more oil seals are introduced as there are several different kinds of clearance seals, also known as labyrinth seals. The one feature they all share with each other is that they all work on a principle of positive clearance. This means that there isn’t any rubbing that occurs against the shaft or the housing.

A lot of labyrinth seals are made up of a rotor, which rotates, and a stator, which is static, piece with a radial gap between the two pieces. The gap has to be bigger than the radial clearance of the bearing that is being sealed. Also, the operating speeds as well as the temperature have to be considered when utilizing a labyrinth seal. These kinds of seals typically don’t perform very well at lower operating speeds.

Another type of labyrinth seal is a laminar sealing ring, which utilizes a series of flat metal rings, similar to washers, of different diameters to make a labyrinth seal. Bearing isolators are a dynamic kind of seal that is designed to keep bearings protected from outside elements. They are also made up of a rotor, a rotating piece, and a stator, or static member. Some bearing isolators are made out of labyrinth construction but others use O rings or other kinds of positive seals.

More about oil seals and check it out now!

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Rotary Die Cutting

Rotary die cutting is a process used to cut paper, metal, rubber, plastic, vinyl and other material in a predetermined shape and size. This method is used to cut shapes and designs that cannot be accomplished by a straight cut on a web press or a guillotine cutter.

The rotary cutter uses knife-edge cutting blades designed to cut a particular shape. A machine presses the die into the material to produce the desired shape. The blades can be designed to cut a diverse range of raw materials. Labels, envelops, folders, cartons and documents are just a few items produced using the rotary die cutting process.

The cutting dies used in the rotary die cutting process are made from tungsten carbide. It is a very hard and expensive substance used in high volume production processes that justifies the extra costs incurred. Perforated blades or dies are used to form perforations on paper. These can be used for making receipts books, bills and tickets. Rotary die cutting equipment for industries involves relatively low upfront costs ranging from $50,000 to $70,000. However, the cost of replacing old and worn out blades is high.

One major drawback of rotary die cutters is that changeovers are time consuming and difficult. This is because they require excessive amounts of material to re-register the printing to the desired cutting and creasing specifications. Rotary die cutting equipment only registers in the direction of travel. If the material shifts in any other direction, defects begin to appear.

The rotary die cutter process is economical over a longer period. It is extensively used in manufacturing industry and stand-alone die cutting firms. However, the technology is changing at a fast pace, and new processes like laser die cutters are already in use. These are much faster and accurate than rotary die cutters.

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Introduction of Trigger Sprays

Trigger sprays are used for many purposes and a wide range of different cleaning products, pesticides and beauty care products are packaged in bottles with trigger sprays. The trigger spray manufacturer has to keep abreast of current market trends and innovate according to specific customer needs. One customer may want a low actuation force while another may require a higher actuation force. Some customers may want a misting option or a more targeted jet. The trigger spray manufacturer may have to put in research and come up with sprays that suit the customers’ specific requirements. Trigger spray manufacturers have to make sure that the sprays work according the client’s brief and usage requirements and that is why trigger spray manufacturers are very important.

Trigger spray bottles are one of the most commonly used spray bottles on the market currently. These trigger spray bottles are extremely straightforward to store and use and they put ready-to-use solutions right at the fingertips of the consumer. For the manufacturers of products such as domestic cleaning liquids, industrial cleaning products, and more, trigger spray bottles are perfect and help with the sales of their products, especially because this type of bottle is popular with consumers.

Contact Living Fountain Plastic Ind. Co., Ltd. regarding your trigger sprays inquiry!

Taiwan Plastic Buckle Manufacturer

Shin Fang plastic buckle manufacturer started designing & producing all kinds of plastic buckles. You can choose the appropriate style or pattern you need, or cooperate with Shin Fang to develop plastic side release buckle products of novel styles. Our standard and integrated operational flow process has passed ISO 9001: 2008, manufacturing the excellent plastic buckle products that conform to the clients’ demands. Our product line includes side release buckle and plastic buckles are made of a wide plastic material of POM, NYLON, PP, ABS, PVC, HYTREAL, TPR, and others. To customize buckle products, please contact with us.

We have had experiences for over 20 years on manufacturing plastic buckles for offering companies worldwide. We had successfully earned the trust and good feedbacks from customers. We also have accumulated a lot of experience and can provide immediate assistance to solve the problems occurred in product design and production process. Strict production flow and quality control system in the factory satisfy customers’ requirement. The sales department quickly response messages between two sides to meet shipping schedules or other special needs from customers.

About Spiral Bevel Gears and Its Comparison with Hypoid Gears

Spiral bevel gears are gears with helical teeth. These gears are used in the differential of a vehicle where the drive’s direction must be turned at an angle of 90 degrees from the drive shaft to drive the wheels. The helical design facilitates less vibration and noise in comparison to the traditional spur-cut gears with straight teeth.

As the Spiral bevel gears are lapped and manufactured in pairs, it is advised that one should replace them in pairs, i.e., both the left hand and the right hand gear should be replaced together when either gets damaged.

A right hand gear is the one in which the external half of a tooth is inclined from the axial plane via the midpoint of the tooth in the clockwise direction. This is based on the observation of a person who looked at the gear’s face. On the other hand, the left hand gear is one whose tooth’s outer half is inclined in the anticlockwise direction from the axial plane and through a tooth’s midpoint. However, it is to be noted that both the right and left hand designations are applied similarly to other types of gears such as the hypoid, oblique tooth face, and many other.

Hypoid is a kind of gear whose axis does not intersect with the meshing gear’s axis. The shape of a hyploid is a revolved hyperboloid, while the spiral bevel are conical. A hypoid places the pinion off-axis to the ring gear. This allows the pinion to be larger in diameter, thus having more contact area.

The pinion and gear are always of opposite hand in a hypoid gear. It incorporates some sliding and can be considered as the midway between a worm and straight-cut gear. A hypoid gear requires special oils to ensure smooth sliding action under extreme conditions between the teeth.

Comparison between Spiral Bevel and Hypoid Gears

Although hypoid gears operate more quietly, they also have some sliding action which reduces their mechanical efficiency. Earlier, hypoid were used in rear-drive automobile drivetrains, but their modern designs have made them a neat substitute of the spiral bevel.

A hypoid is still common in trucks due to the capability of trucks in transmitting higher torque. However, one cannot replace hypoid with the spiral bevel gear in automotive because the latter requires a much larger diameter in comparison to the former one to transmit the requisite torque.

Prakash Gears is a leading manufacturer of different types of robust gears in all of India.

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5 Easy Steps to Installing a Pressure Tank

If you live in a regular suburban-style home or are thinking of moving into one, one of the things you might have to consider getting initially for your home is a pressure tank. It is a device that uses compressed air to push water from a water source upward. In homes that have two or more stories, they are needed to push water from a ground water source to the plumbing fixtures above. Without it, you won’t be able to use water in the upstairs part of your home, especially if the ground water source doesn’t have a very strong force.

Getting a pressure tank is easy but requires a bit of research as you need to know what type is appropriate for your home. You can consult with a professional when in doubt, but the process is fairly straightforward so long as you read the manufacturer’s instructions thoroughly. It helps to be friendly with hardware store owners that sell tanks because they can give you helpful tips on how to install it yourself.

Choose the right kind. There are various sizes. The larger ones may be more expensive, but they can hold more water so the pump switch will be turned on less, extending it’s life. There are several types available. You can get a galvanized (which is one of the oldest types), a pre-charged, an air pressure tank, and a sealed diaphragm. Do your research to check which is best for your home-try consulting with a plumber if you’re not sure.

Prepare. Pumps use electricity to be able to function properly. Be sure that you have completed the electrical connections that you need. Follow the manufacturer’s instructions for any valves that need to be installed. Certain kinds of valves need to be installed in the pump in order to allow it to re-pressurize automatically.

Check your water source. Pressure tanks need a water source from a discharge pipe, to be fitted with a gate valve according your manufacturer’s instructions. Be sure the water is clear and free of any sediments or debris. If not, let it run until it is clear.

Install the pressure tank. You will need an air volume control on it to monitor the amount of compressed air pushing the water into the pipes; it needs to be just the right amount. Place your pressure tank on a raised platform, to allow water to drain out when necessary. Concrete blocks would be good for this. Once that’s done, connect the pump to the water pipes. Test it out and allow the pressure tank to fill up until the pump automatically shuts off. Do this a few times to be sure that it works properly.

Install any water filters or water softener systems, if necessary. You’re done! Be sure to periodically check on your pressure tank to make sure that it is working at optimum conditions.

A pressure tank might just save you a lot of time!

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How Manufacturers Do Aluminum Extrusion?

The process of aluminum extrusion is simple and easy however it is very significant to know why extrusion is so important. In general metals like steel and aluminum is put to use in several industries, right from automobile, to telecommunication, transport, utensil manufacturing and at times even in the toy industry. Thus, both of these metals are in huge demand and find place is almost all the major manufacturing industries in the world.

Just after steel, aluminum is the other metal which is hugely popular all over the world. This can put in a manner stating that aluminum is the second most popular metal in the globe after steel. The former is widely available, has impressive properties, and is affordable, light weight, can withstand high temperatures and so on. And above all the aluminum extrusions involved in getting different shapes and forms for suppliers is cost-effective and simple. Both in US and Europe building industry and the telecom as well is highly dependent on aluminum extruded products. These products find a number of usages and are used in many applications.

So, what is aluminum extrusion? This is a process through which aluminum is given certain shapes and forms. It starts with the hot cylindrical billet of aluminum which is pushed through a shaped die. The billet is cut from DC cast log and placed in heated container (450°C – 500°C). When pushed through the die the metal flows through the steel die. The die is placed at the other end of the container. Now, once the log passes it produces a section, this can be cut into shapes either in long length or short. The section is cuts according to the customized demands of the clients since the log is meant to be used for any particular industry. In certain extrusion process rectangular shaped billets. In this process only wide section sized extrusions are produced. This again depends according the demands of the supplier.

Aluminum extrusion is done for several kinds of industry and these aluminum extruded products are very commonly used in building industry. In this industry you can use aluminum in prefabricated houses/building structures, window and door frame systems, curtain walling, roofing and exterior cladding, and shop fronts. Besides, they also find place in the telecommunication and transport industry. In transport industry aluminum extruded products are found in rail vehicles, marine applications, airframes and for vehicles on the road.

So, what makes aluminum so popular? It is the versatility and the flexibility of the material that turns in so popular. Since aluminum is high temperature resistance and is corrosion resistant as well it is used to make utensils and is also used on transport vehicles. Besides, it is strong even though it is light weight and thus it is used in airframes.

So, if you are out there still deciding on selecting aluminum extruded products or some other metal you can give your votes to this metal as it is affordable and durable as well. No more second thoughts to this go ahead with aluminum extrusion and the products.

Anil is executive in an Aluminum Extrusions India Company and here he shares here views on extruded aluminum products and its varied other features and uses

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How Does A MIG Welder Work?

The Metal Inert Gas or MIG welder has been developed since the 1940s and has become the choice way to weld. It uses a procedure called gas metal arc welding (GMAW). It is a relatively simple process. It uses a welding gun to control the feeding of a wire, also known as the electrode, and distributes a stream of inert or semi inert gas over the join to protect the process.

These days the most common gas to be used is the semi inert gas known as carbon dioxide as this is check and works effectively on most metals. Gases such as argon is also used when working on metals such as aluminum as it produces fewer splatters, giving a better finish.

The GMAW process has many more benefits compared with other types of processes. One of these advantages is that the gun has a trigger to control the electrode, allowing you to have more control and position the tip without the danger of striking an arc by accident. Once it is in the place you want, all you have to do is flip down your helmet and pull the trigger.

The shielding gases which are either inert (for a better result) or semi inert (cheaper) are used to protect the join and smooth and clean the joins. That way there is no need to clean off any slag. The process also allows work to be performed at reduced amps, so it can be used for thinner metals and sheet metal. A DC current is always used for this as using alternating currents does not provide a steady arc reducing the effectiveness of the job.

It also lets you adjust the amps, the voltage and the wire feed speed allowing you to have total control over the weld result. There is a valve on the handle that can control the flow of gas as well.

If you want you can also use a MIG welder even without the gas to shield the join. The process is called flux cored arc welding (FCAW). This process uses a wire that has a hollow core that is filled with flux to produce a clean join. This allows you to work outdoors as you don’t need the shielding gas. As a result, the flux core wire is hotter and can be used for thicker joins. A resulting problem is that you will need to clean the slag from the join.

MIG welders are used to join tin, zinc, copper, aluminum, tin, brass and steel. There are also a lot of different configurations of MIG welding wires to choose from. It allows you to get the best combination for almost any situation. If you are on a limited budget and only want to purchase one welder and still be able to work on a variety of metals, the MIG welder is seen by many as the best one to go with.

Check out more information on how to use MIG welders. If you are looking at MIG welders for sale check out this advice on features to look for, so you get the right one for your needs.

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Nuts and Washers – Choosing the Right Type for Your Project

Even the smallest tools and supplies play a huge role in the construction industry. Nuts and washers, for instance, are two small yet very important parts. These are forms of fastener bolts and function by securing the screws in place. Machines, furniture pieces, and other structures frequently exposed to vibrations need these fasteners. Without nuts and washers, the screws can come off and the machine will break apart. This can lead to grave damage to properties and even serious injuries.

This article will discuss the features of nuts and washers and the available types. The following information will be helpful when you are planning to start a construction project that requires screws.

Nuts are oftentimes hexagonal in shape. Hex nuts are the most common types and are used in many general-purpose products. This fastener has a threaded hole in the center. Washers, on the other hand, are simpler types of fasteners. They are usually flat and are available in different shapes and sizes. Similar to nuts, they function by fastening screws and acting as spacers. Steel and plastic washers are the most used types. Steel types help prevent deterioration of two joint metal objects due to electrical contact. Plastic washers are common in valves and faucets.

Since construction projects require the exact types of nuts and washers, you need to choose the right items. The following are some specific types of nuts and washers and their uses.

Nuts

Locknuts. This type is best suited for items that are prone to vibration. They provide resistance to the force of vibrations. They also come in different styles but most of them serve the same purpose.

Wing nuts. This nut type comes with two “wings.” These features make it easier to adjust even with the use of bare hands. This type is ideal for construction projects that need frequent tightening or loosening.

Square nuts. This type usually has a larger surface than hex nuts. This feature makes it easier to grip using wrenches. In some cases, workers weld square nuts to machineries.

Slotted nuts. People also call these castle nuts because of its resemblance to a castle tower. This is also an efficient tool in projects where vibration may take toll on the efficiency of the material. It prevents movement when you fit a pin through the slots on the nut and through the hole in the bolt.

Types of Lock Washers

Spring lock washer. This type of washer also provides efficient vibration resistance. When you want to purchase the right lock washers, you have to consider the size that you need. You have to know the minimum thickness, the inside and outside diameters.

Spherical washer. It has a male and female part. Their sections fit together and are the ideal type for dealing with misalignments.

Tooth lock washer. This type lock washer comes in different teeth types namely, internal (for a cleaner appearance), external (for best locking), internal-external (for electrical grounding), and countersunk external (for round screw heads).

Nuts and washers are usually available in your construction supply store. You can also get these materials online along with other supplies such as beam and column anchors, and concrete inserts. Search for a reliable supplier to get the best materials.

Markus Amsel is researching on the many uses of nuts & washers and column anchors for construction projects.

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