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Welding Equipment

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Electric Welding Machine refers to machines apparatus, and jigs and fixtures required for the fabrication of welded articles from semifinished stock. A welding position, or station, is a set of welding equipment for operations that require some degree of participation by a welder. A welding line combines several welding stations.

Welding stations may be used in arc welding, resistance welding, gas welding, electron-beam welding, or other methods. The welding equipment includes the ARC Stick Welding Machine, power supplies, and devices directly used to conduct the welding process, jigs and fixtures for the rapid assembly of the parts to be welded, for holding the parts during welding, and for preventing or reducing warpage of the welded articles, auxiliary equipment used for transporting the parts during welding and for mounting and transporting the welding apparatus, and various other tools used by the welder. Various transport means and instruments for controlling weld quality are also used in the welding process. The technical characteristics of welding equipment are determined by the welding method chosen, the type of production, and the degree of mechanization, that is, whether manual, semiautomatic, or automatic welding is performed.

 

A welding station is a section of a production area where a power supply, current-carrying conductors, and necessary jigs, fixtures, and welder’s tools are located. In order to protect personnel in the area from radiation, the welding station is enclosed by curtains or panels. Fixed automated stations are widely used in modern manufacturing processes; such stations are located in manufacturing shops. Mobile stations are used in the field for welding large objects in construction and repair work.

 

Welders.

Welding stations include power supplies and equipment for the regulation of the arc during welding. Power supplies used in welding should provide a convenient, continuous or step control and must satisfy general requirements for electric machines and equipment. AC DC TIG Welding Machine, transformers, generators, and rectifiers are used in electric welding; gas generators are used in gas welding. Power supplies may be single-position or multiposition types, stationary installations for continuous, long-term operation, or small, portable units for work of short duration.

 

A welding transformer is used to match the parameters of the welding circuit and the power supply; it also functions as a voltage regulator. In Stud Welding Machine, the voltage is regulated mechanically or electrically. In the former case, the distance between the primary and secondary windings is altered. Electrical regulation is accomplished by changing the control currents in supplementary windings, located on the upper and middle field frames of the transformer. In this method, the secondary winding is divided into two sections, one of which is located in the upper window of the transformer. Such a transformer is capable of producing various no-load voltages without a change in the turn ratio; this property is required for welding adjustments. Welding transformers used in resistance welding have a minimum short-circuit resistance and a secondary winding that usually consists of one or two turns. Changes in secondary voltage are achieved by tapping sections of the turns of the primary winding.

 

Air Plasma Cutting Machines are becoming an increasingly common tool in many industries such as metal fabrication, construction and automotive repair. This tool is able to cut through several types of metal including steel, copper, brass and aluminium by generating an extremely high-temperature, electrical channel of ionised gas otherwise known as plasma.

To create the 4th matter – the plasma – the cutter sends an electric arc through a gas, (either oxygen, nitrogen or argon) which rapidly increases the heat levels to the point where it goes beyond a solid, liquid or gas and becomes plasma. The machine will then use the plasma to transfer the energy to any conductive metal, allowing it to cut through with very little or no resistance. This method results in a clean, fast cutting process.

 

Laser Welding Machine or laser beam welding is one of the most widely known, accurate types of welding processes. It is a non-contact, high power density welding process used to join multiple pieces of material together using energy emanating from a laser beam. Aerospace, defense and military, medical, electronics, petrochemical refining, communications and energy are some of the common areas where laser welding techniques are applied extensively.

  • Deep weld penetration and minimized heat inputs are the special characteristics that set laser welded products apart from other conventional welding processes;

  • Pulsed or continuous laser beams are used depending upon the welding application;

  • There are many types of laser welding available and the most popular types include Nd:YAG laser welding, CO2 laser welding, and diode pumped laser welding;

  • Deep narrow welds, without any distortion, and minimal heat-affected zones can be obtained using our laser welding machines that can function at increased travel speeds.

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posted Jan 27 by Po77m16

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Working in the mining industry can be a dangerous place if you don’t know what you’re doing. Regular training is essential and understanding the machines you’re working near or operating plays an important role in all aspects of the industry.

Each type of mining equipment comes with its own set of mining activities. The most common types of Mining Equipments and Parts vary depending on whether the work is being carried out above or below ground or mining for gold, metals, coal or crude oil. From drilling machines to excavators, crushing and grinding equipment – the mining industry comes complete with all the right tools. New to the job and want to find out what it all means? Here’s a few of the industry’s most common types of equipment and why they’re important for the job.

Mining Drills

Probably one of the most common pieces of mining equipment, drills are an important part of the underground mining operation. Underground mining is carried out when rocks or minerals are located at a fair distance beneath the ground. But then they need to be brought to the surface. Underground specialized mining equipment such as trucks, loaders, diggers etc. are used to excavate the material and are normally hauled to the surface with skips or lifts for further processing. Drilling is normally required to place explosive charges to liberate the minerals from the overburden material. Underground mining techniques have progressed significantly over the past years, including using remote controlled machinery.

Drills assist in creating holes descending underground. If miners are required to work underground, drills can also be used in ensuring the holes are large enough to serve as a portal for miners to enter. Directional drilling is also a type of mining technology where miners will use the tools and certain methods to drill wells.

 

Overview of Ball Mills

As shown in the adjacent image, a ball mill is a type grinding machine that uses balls to grind and remove material. It consists of a hollow compartment that rotates along a horizontal or vertical axis. It’s called a “ball mill” because it’s literally filled with balls. Materials are added to the ball mill, at which point the balls knock around inside the mill.

How a Ball Mill Works

Ball Mills work by using balls to grind materials. Materials such as iron ore, pain and ceramics are added to the ball mill. Next, the ball mill is activated so that it rotates — either on its vertical or horizontal axis. As the ball bill rotates, the balls bounce around while striking the enclosed material. The force of these strikes helps to grind the material into a finer, less-coarse medium.

For a ball mill to work, critical speed must be achieved. Critical speed refers to the speed at which the enclosed balls begin to rotate along the inner walls of the ball mill. If a ball mill fails to reach critical speed, the balls will remain stationary at the bottom where they have little or no impact on the material.

 

No industry puts its Pumps through the ringer quite like mining. When the price of commodities such as gold spike in the short term, there is no time to lose--companies have to act fast to extract whatever they can as quickly as possible. While this flurry of activity is great for stockholders, it is not ideal for equipment. Many pumps end up falling prey to a myriad of problems that range from corrosion to being crushed by heavier machinery. To protect mine dewatering pumps to the fullest extent, consider these six common threats that pumps may encounter during mining operations.

 

In the mining industry, Hydrocyclones are mineral processing equipment used in slurry pulps to separate coarse and fine particles according to their size and density. The mixture [slurry pulp] is injected into the hydrocyclone in such a way as to create the vortex and, depending upon the relative densities of the two phases, the centrifugal acceleration will cause the dispersed phase to move away from or towards the central core of the vortex.

Coarse particles exit the bottom of the device (underflow) while fine particles are carried by the central air column and exit at the top (overflow). In metal processing applications, the product stream is the overflow (fine particles) and is typically sent to flotation circuits. The product stream is the underflow (coarse particles), as fines are separated from the final product as a means of quality control.

While under certain conditions roping and plugging can occur where the hydrocyclones ceases to classify the particles, the shapes of the discharge are visibly different than normal operating conditions.

The roping condition occurs when the amount of solids in the underflow increases to such a point that its discharge velocity is limited, resulting in the accumulation of coarse solids in the separation chamber. This mass passes through the vortex, causing the inner air core to collapse and the discharge at the apex to take the form of a solid stream (rope) consisting of coarse material with high solids density. Roping conditions reduce recovery rates and efficiency in metals processing and lead to quality losses in copper processing.

 

Industrial Conveyor and Parts have many different designs and uses. Common types are belt, roller, motorized roller and overhead conveyors. We categorize them as floor style (mounted on the floor) or overhead. Use them to move products, create buffers and deliver products in sequence for a production line.

HOW ARE CONVEYORS USED?

Manufacturing engineers include conveyors in their production facilities for many reasons:

Moving products from point A to B (to avoid wasted time walking, or to reduce movements of forklifts, etc)

  • To carry products that are too heavy to for team members to lift

  • To move a product while operators are working on it (or adding to it). Like a final assembly conveyor at an auto plant

  • To avoid injury to workers from repetitive movement. Or to prevent damage to products caused by movement

  • To deliver products to a robot for processing. Or to receive products from a robot that are ready for the next step

 

Polyurethane & rubber Tensioned Screen Mats provide high wear and corrosive resistant screen media for all applications, from scalping to dewatering. Tensioned Screen Mats are available in a wide range of apertures and shore hardnesses.

Tensioned Screen Mats provide superior screening efficiency over conventional screening media, with substantially lower noise levels compared to standard woven wire screens.

The abrasion & impact resistance that Tensioned Screen Mats offer increases the product life span compared to woven wire screens.

 

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passive multiplexer in most networks consists of a mux and demux optical component. The mux combines, or multiplexes, wavelengths onto a fiber. The demux on the other end of the connection splits, or de-multiplexes, the connections.

In DWDM system, DWDM mux demux is two indispensable modules. Mux (Multiplexer) is a module at the transmitter end that brings several data signals together for transporting over a single fiber, while Demux (Demultiplexer) is a module at the receiver end that separates the signals that come together and passes each channel to an optical receiver.

CWDM mux demux (Coarse Wavelength Division Multiplexer/Demultiplexer) is a flexible, low-cost solution that enables the expansion of existing fiber capacity. CWDM multiplexer is for combining signals together, while demultiplexer is for splitting signals apart.

A polarization-maintaining (PM) WDM filter is a small device used to multiplex PM signals while maintaining the output polarization. When you are using highly efficient systems, PM fibers and PM signals play a very critical role in ensuring the desired efficiency.

Fiber Patch Cord & Cable Assembly, often called fiber patch cable, fiber jumper, or fiber patch lead, is a length of fiber cable that terminated with fiber optic connectors (LC, SC, MTRJ, ST and etc.) at each end. The connectors allow fiber optic patch cord to be rapidly connected to an optical switch or other telecommunications/computer device.

Fiber loopback is widely used for various applications. In terms of telecommunication, loopback is a hardware or software method to feed a received signal or data back to the sender. It is very useful for solving physical connection problems.

Fiber terminators(Plug-in type or Build-out type) are used to terminate unused fiber connector ports in fiber optic systems so optical terminators unwanted reflections are not introduced back into the system. It is used in the fiber-optic networks to install on possibly unused ports.

Fiber optic isolator is a passive component used for fiber optic communications. As a magneto-optic device, the purpose of optical isolator is to allow light to be transmitted in only one direction. An optical isolator is a device that is designed to allow the optical signal travel in the forward direction while block reflections that would travel in the backward direction. Optical isolators are critically important in many applications in optical systems.

FBT splitter(fused biconical taper) is the traditional technology in which two fibers are placed closely together, typically twisted around each other and fused together by applying heat while the assembly is being elongated and tapered. A signal source controls the desired coupling ratio. The fused fibers are protected by a glass substrate and then protected by a stainless steel tube, typically 3 mm diameter by 54 mm long. FBT splitters are widely accepted and used in passive optical networks.

The PLC splitters are used to separate or combine optical signals. A PLC (planar lightwave circuit) is a micro-optical component based on planar lightwave circuit technology and provides a low-cost light distribution solution with small form factor and high reliability. PLCs are manufactured using silica glass waveguide circuits that are aligned with a v-groove fiber array chip that uses ribbon fiber. Once everything is aligned and bonded, it is then packaged inside a miniature housing. PLC splitters have high quality performance, such as low insertion loss, low PDL, high return loss, etc.

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Green tea is made from the Camellia sinensis plant. Its dried leaves and leaf buds are used to make several teas, including black and oolong teas. Green tea is prepared by steaming and pan-frying the Camellia sinensis leaves and then drying them. Green tea is not fermented, so it's able to maintain necessary molecules called polyphenols, which seem to be responsible for many of its benefits. It also contains caffeine. Drinking green tea is linked to a reduced risk of clogged arteries. Drinking green tea might reduce the risk of developing high blood pressure. It might also slightly lower blood pressure in people with high blood pressure.

One of the most classical Chinese green teas, Chunmee tea is a tea every tea lover has to try at least once. It offers a good perspective on a wide range of green tea flavors, may offer numerous benefits, and tastes great, both hot and cold. It’s produced only in China, mostly in Anhui and Jiangxi Province. The English name of this tea is "Precious Eyebrows tea" because of the small hand-rolled leaves shaped in the form that resembles eyebrows. Chunmee is produced in China and is one of the most popular green teas in western countries. Chunmee is a pan-fired tea. Pan-fired teas have a less vegetal and nuttier flavor, that can be light or more intense, depending on how the teas were made.

Gunpowder tea is loose-leaf tea that is tightly rolled into tiny pellets that resemble gunpowder. This type of tea is usually produced using green tea leaves, but not always. The benefits of gunpowder tea depend on the type of tea leaf that is used to produce it. Gunpowder tea has a unique production method. To make the highest quality gunpowder tea, artisans wither, steam, roll, and dry individual tea leaves. This tea is sometimes called pearl tea or bead tea based on the shape of each tiny tea pellet. Some people also call it Chinese gunpowder tea.

tea bag (or "teabag") is generally agreed to be a small, porous bag used to steep tea. These bags may be sealed and filled with tea leaves, or they may be open and empty (thus allowing the tea brewer/drinker to fill it with whole-leaf tea). Many tea bags have a string attached to make removing them from the brewing vessel easier, however, this is not true for all tea bags. Generally, tea bags with a string attached also bear the name of their producer or the type of tea on a small piece of paper at the opposite end of the string from the tea bag itself.

The famous tea in the 21st century includes Xi Hu Long Jing, Jiangsu Bi Luo Chun, Huang Shan Mao Feng, Liu An Gua Pian, Fujian Bai Hao Yin Zhen, Qimen Hong Cha, Du Yu Mao Jian, Xin Yang Mao Jian, Wuyi Yan Cha, Fujian Tie Guan Yin. Most of them have a singular shape, flavor, and aroma, easily discerned from other styles, and are developed from a particular local variety of tea bush that has acquired strong and widespread appeal.

Flower tea is a mixture of tea and tisanes. In ancient times, people used tea as a herbal medicine long before drinking it for pleasure. They added flowers to boost the medicinal value and sensory delights of the tea. Some blossoms commonly used in flowering tea are jasmine, calendula, globe amaranth, marigold, and lily.

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