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How does it Work?
The first stage of injection moulding is to create the mould itself. Most moulds are made from metal, usually aluminium or steel, and precision machined to match the features of the product they are to produce.

Once the mould has been created by the mould-maker, the material for the part is fed into a heated barrel and mixed using a helical shaped screw. Heating bands melt the material in the barrel and the molten metal or molten plastic material is then fed into the mould cavity where it cools and hardens, matching the shape of the mould. The cooling time can be reduced through the use of cooling lines that circulate water or oil from an external temperature controller. Mould tools are mounted on plate moulds (or ‘platens’), which open once the material has solidified so that ejector pins can eject the part from the mould.

Separate materials can be combined in one part in a type of injection moulding called a two-shot mould. This technique can be used to add a soft touch to plastic products, add colours to a part or produce items with different performance characteristics.

Moulds can be made of single or multiple cavities. Multiple cavity moulds can have identical parts in each cavity or can be unique to create parts of different geometries. Aluminium moulds are not best suited to high volume production or parts with narrow dimensional tolerances since they have inferior mechanical properties and can be prone to wear, deformation and damage due to the injection and clamping forces. While steel moulds are more durable they are also more expensive than aluminium moulds.

The injection moulding process requires careful design, including the shape and features of the part, the materials for the part and the mould and the properties of the moulding machine. As a result, there are various considerations that need to be taken into account when injection moulding.
http://www.kegao-precision.com/metal-mould/

9, Ekim, 2022 gweigh78 tarafından

The Great Debate: Top-mount or Undermount Sinks?
Decisions when undergoing a kitchen renovation or producing your own kitchen – each time you make one you are faced with two more, as if you’re Hercules cutting off the many heads of the menacing Hydra. Unfortunately, we’re not here to provide you an encyclopedia that will inform your conclusions for each and every decision that you will have to make in this overbearing task, but this latest blog instalment by QN Designs will bring you the insight to hopefully make one of those decisions just that little bit easier. Here’s all that you need to know about making the choice between style and convenience, between trend and budget: the choice between having an undermount or a top-mount sink.

Typically, when you buy a sink you will find that you have the inset bowl as well as a lip lining the edge or outline. For top-mount sinks, if you drop them into a cutout hole within a benchtop, the lip will save the sink from falling straight through and clanging onto the ground. Hence, top-mount sinks are also commonly referred to as drop-in sinks. You may also hear them being called overmount sinks and rimmed sinks for the similar reasons.

While a top-mount sink sits jovially above the benchtop, an undermount sink is holding on for dear life underneath the countertop. Due to these circumstances, an undermount sink must be specially installed through methods including sandwiching the sink lip between the underside of the benchtop and a support board, bonding the sink to the benchtop using a glue-like epoxy or merely bolting the sink underneath the counter. It altogether allows for a comparatively more streamlined look on the surface where there is no visible lip but instead sports a smooth benchtop surface across the whole space. If you want to stay up to date in terms of kitchen fashion and trends, then undermount sinks are generally considered to be more marketable and in style than your traditional drop-in sinks whom have been around for eras.

When considering the price of these two sinks, you must be sure to take into account both the cost of supply and the cost of installation. For the aspect of supply, an undermount sink is going to be more expensive than an overmount sink of the same shape and material.

In terms of installation, undermount sinks are also pricier in comparison and this is quite evident when we consider all the work needed to keep these bodies from losing its stick and falling to the floor while smashing all the plates within. It includes the price of extra materials needed for the job as well as the price of external labor if you are having a third party do the work. In addition, undermount sinks are strongly recommended to be partnered with a sturdy benchtop such as engineered stone, meaning that there is also polishing to be done on the inside edges of the cut out to smooth out any coarse surfaces.
http://www.jrmtsinks.com/topmount-sink/single-bowl-topmount-sink/

9, Ekim, 2022 gweigh78 tarafından

Variable Speed Compressors for Improved Energy Efficiency
Energy efficiency is one of the most important factors all businesses are concerned with. The more efficient your air system, the lower your energy consumption and the cheaper your energy bill!

A vast amount of the energy that is lost in a factory or plant is due to wasted energy in an air compressor installation. This can have a huge effect on energy costs, raising your bills and making your cost of ownership high. Various technologies have been developed to ensure that compressed air systems are performing as efficiently as possible, one such technology is variable speed drives (VSD).

Traditional air compressors are fixed speed, meaning they run at a constant and consistent speed. This produces a fixed amount of compressed air per minute. There are many benefits to fixed speed compressor technology if your compressed air demand is constant and unchanging. However, this isn’t always the case. As fixed speed compressors are always operating at full-throttle, if all of the output is not required then energy is being wasted.

Furthermore, fixed speed compressors run unloaded as the stress of an engine start-up would put pressure on the motor. This can be a waste of energy as the machine is running without producing any compressed air. Variable speed compressors avoid this issue by matching the output with the demand created. By simply producing the exact amount of air being used by the downstream equipment, variable speed compressors help to improve plant efficiency.

Watch this video to see how a fixed speed compressor can be sequenced with a variable speed machine to precisely match output with network demand to save energy.

Many air compressor installations will benefit from the efficiency variable speed drive technology provides. Whether you are in the food and beverage industry, automotive, medical industry or even manufacturing, there will be times when your demand for compressed air will vary.

A combination of both variable and fixed speed compressors is thought to be the most cost-effective and advantageous set-up, resulting in the most energy saved and demands met.
http://www.fscooling.com/compressor/dc-variable-speed-compressor/

9, Ekim, 2022 gweigh78 tarafından

What does Embossed Vinyl Flooring Mean
As you explore the many flooring options available for your home, you may be focused on finding a beautiful material that enhances the décor. Real hardwood flooring is a popular option because of its undeniable charm and wide range of available styles. Many people love the texture of the grain of the wood as well as its richness and sheen. From the sophisticate of deep cherry wood with a smooth sheen to the deep striations and character of oak floors with a textured finish, there is a wood flooring style that is seemingly perfect for most homes. However, wood flooring as its drawbacks. For example, it may easily be scratched, and it should not be exposed to moisture. In addition, it may be one of the more expensive flooring options available. If you are looking for a great alternative to real hardwood flooring without the drawbacks, embossed vinyl flooring or laminate flooring mimics the grain of the wood and may be a more suitable option for your home.
Before you learn about embossed vinyl and laminate flooring, it makes sense to understand how vinyl floors and laminate planks are different than hardwood flooring. These are both synthetic flooring materials that are known for their affordability and durability. Vinyl is usually comprised of a PVC material, and it can be texturized and dyed to mimic the look of many other types of floors. Regardless of whether you choose embossed vinyl planks or tiles, floating vinyl or glue installation methods are available.

Laminate flooring, on the other hand, is comprised of multiple layers of a wood material compressed tightly together. This material is usually fiber board or a type of melamine resin. It is covered with a printed layer that can mimic the look of wood flooring. Laminate also has a wear layer, which could have a textured finish or a smooth finish. It is most commonly available in laminate planks, but you can find tiles as well. The same installation methods that are available for vinyl flooring are available for laminate flooring.
http://www.beprospcfloor.com/spc-floorings/embossed-spc-flooring/

9, Ekim, 2022 gweigh78 tarafından

Shielded Cable: When To Use
Electromagnetic interference (EMI) is prevalent throughout the factory floor. This is why data and signal cables are usually protected with insulated conductors and wrapped with a conductive layer. Shielding reduces electrical noise and reduces its impact on signals and also lowers electromagnetic radiation. Shielding prevents crosstalk between cables near each other. Shielding not only protects cable but it can also protect machinery and people as well.

Power cables are constructed to be electromagnetic compatible (EMC) to minimize noise generation, which affects many other systems like radio and data communication.

Communication cables are shielded to prevent the effects on the data transmitted from EMI. To further prevent cross talk and coupling, communication cables are also paired and individually shielded.

In some applications, such as those needing servo cables, double or even triple shielding is required: around individual conductors, around twisted pairs, and around the entire cable.

Some applications do not require shielded cables. For example, if a cable will be used in a cabinet or otherwise away from other sources of noise, it does not need to be shielded, as it will be protected from noise and EMI already.

Cable shielding uses either a braided, spiral design or metal-coated Mylar or foil shield. The shielding wraps around each conductor to mitigate noise by 85% to 100%, depending on the configuration. The maximum shielding a braided shield can have is 90%. Spiral shields can offer 98%, while metal-coated Mylar can deflect 100% of EMI.

Using a thin layer of Mylar or aluminum foil eliminates the gaps you may encounter with braided designs. The foil is attached to a polyester backing to provide 100% coverage. However, because it is thin, it can make applying connectors a challenge. Foil shielding can also be damaged in high-flex applications, so spiral or braided designs work best there.

Just as described, braided shielding is made of a mesh of bare or tinned copper wires woven together. It is easy to terminate when crimping or soldering a connector. Because of the braiding, small gaps of coverage do occur, thus resulting in the only 90% shield rating. If the cable is not moving or flexing, this coverage should be sufficient. However, the braided design does add cost and weight to the final design.

If an environment is extremely noisy, a cable may use multiple layers of shielding with both the braided and foil designs. Sometimes pairs of wires are shielded individually in addition to the entire cable being shielded. This is done to prevent crosstalk between pairs.
http://www.avanzados.net/shielding-material/

9, Ekim, 2022 gweigh78 tarafından