Bakelite Parts Have Strong Resistance To Electrical And Thermochemical Effects

It was a beginning of the modern plastics industry. It was a popular plastic with the slogan “the material with 1000 uses.”
Leo Baekeland and his assistant Thurlow who worked in the lab with him. They were looking for a way to produce shellac to cover wood using soluble resins. Natural shellac is made from resin secreted by the East Asian lac bug which is scraped off the bark of Trees the bugs inhabited.
During the summer of 1907 Baekeland decided he wanted to create a product that would strengthen the wood instead of just coating the wood. He wanted to create a synthetic resin to soak into the wood that would make the wood stronger.
Baekeland created a machine he called a “Bakelizer” and the like. The final product after the synthetic towels emerges the final product after the common towels after the heat and pressure in the bakelizers. The final product could be created quickly And molded into a variety of shapes using mass production.
Bakelite also had some other features that turned it into the most important synthetic plastic of the 20th Century. Once the material was molded it retained its shape even when heated and Jewelry that has recently become popular with collectors.
Bakelite was popular in cars and electrical components because it was extraordinarily resistant to electricity, heat and chemical actions. It was soon used in all the non-conducting parts of radios and other electrical devices. Bases and sockets of light bulbs were made of Bakelite Parts. Automobile distributor caps and other insulators were also made from Bakelite.
The Bakelite Corporation adopts the mathematical symbol for infinity as its logo. They coined the phrase “The Material of a Thousand Uses,” for the company’s slogan.

Metal Stamping Parts Design Considerations

The major forming operations accomplished with press-mounted dies are: Drawing, Bending, Flanging, Hemming, Drawing.
Drawing, or draw forming, induced forcing a blank deeply into a die cavity and shaping it into the shape and contour of the punch and dies faces and sides. Without sufficient formability qualities, drawn blanks are subject to folding, thinning, and fracturing.
Bending and Flanging
Fratinging is a form of bending that produces a flange. A flange is differentiated from other bends because the resulting bent materials is significant smaller in dimension than the rest of the Part.
The functions of a flange include:
Giving a more finished appearance
Rigidity
Edge strengthening
Providing a fastening or attachment surface
Hemming And Folding
Hemming is the folding over of a short flange upon itself to form a smooth, rounded edge and to facilitate the attachment of mating parts. Multiple stamping operations may be performed within a single die, or at a number of die stations within a die set and A compound die performing basic cutting operations such as blanking and hole punching to produce Metal Stamping Parts. Combination dies combine shaping and forming functions with cutting operation(s) To manufacture parts
Metal Stamping Design Considerations
The setting of the required clearances is determined by both the stock thickness and Temper. In general, die clearances increase as the stock thickness increases. The depth of punch penetration into the sheet metal stock will also increase as softer stock is used.
Some type of stripper is also required to make sure the part doesn’t stick to the punch and ejector is sometimes used to make sure the slug doesn’t stick to the end of the punch.

How To Verify True Bakelite Parts

Polyoxybenzylmethylenglycolanhydride — better known as bakelite, was among the first synthetic plastics. Heavy, hardy, lustrous and rather versatile, it had become omnipresent within a few decades of its 1907 patent. Telecom utilities issued standard bakelite phones by the hundreds of thousands, it was Liberally used in electronics and machinery components and allowed for unprecedented new shapes for everything from radios to toys to gambling dice.
As the material has fallen out of wide use thanks in part to advances in plastics and other synthetics, original Bakelite Parts
accessories have become increasingly collectible — with very detailed pieces by a handful of designers easily fetching upwards of $1000. Even run-of-the- Mill pieces have become sought after for their offbeat charm and sanguine midcentury forms.
Our friends at Bygones Vintage in Richmond shared several whimsical, brightly-coloured originals with us. Classic bakelite is made by combining wood flour (essentially a very fine ground sawdust) with carbolic acid and formaldehyde. This last ingredient, a pleasant if creepy throwback, Is one key way of verifying a piece’s authenticity—plastic knock offs are apparently commonplace. Rub the piece vigorously and if you smell formaldehyde, you’ve got grade-A bakelite.
Translucent pieces are usually lucite, a plastic of similar vintage that still sees wide use as perspex and in safety glass.

Optical Fiber Cable Distribution Box Features

What Are Fiber Optic Cables?
Fiber Optics are long, thin strands of very pure glass that are arranged in bundles called Optical Fiber Cable Distribution Box and used to transmit light signals over long distances.
How Fiber Optics Work
Fiber Optic lines are strands of optically pure glass as thin as a human hair that carry digital information over long distances. They are also used in medical imaging and mechanical engineering inspection. Fiber Optics are similar to shining a flashlight beam down a long, straight hallway The light travels in a straight line down the hallway. But what happens if the hallway has a curve or turn in it? You could place mirrors strategically in the hallways to get the light to shine through the bending hallway. This science works similarly to The light in a fiber optic cables travels through the core of the cable by constantly bouncing from the cladding (mirror-lined walls), also known as total internal reflection. There is no distribution within the cable, allowing the optical Light to travel great distances.
Advantages of Fiber Optics
Less Expensive – Long distances of fiber optic cables can be made much cheaper than similar lengths of copper wire.
Thinner – Fiber Optic cables are also smaller in diameter than copper wires.
Higher Carrying Capacity – This allows more phones lines, or more channels through your cable box to come through the Fiber Optic cable.
Clearer Connection – Light signals do not interfere with other fibers in the same cable, like copper wires do, resulting in clearer images or phone conversations.
Non-Flammable – There are no fire hazards because no electricity passes through Fiber Optics.

Bakelite Parts Fully Synthetic Plastics

When I set up at antiques shows curious shoppers often question me about the Bakelite jewelry I carry. Many expressing disbelief that “plastic” could be so expensive. Other shoppers just smile and run their hands over the bangles on display, looking to add to their So what is this stuff that entrances so many, while leaving others shaking their heads?
Simply put, it is the world’s first totally synthetic plastic. Previous plastics were either entirely organic or contained organic components. Plastics such as celluloid, tortoiseshell, and gutta-percha. Items made from these plastics were flammable and became brittle over time. Their use to mainly decorative items, such as jewelry and dresser top items, or salt and pepper shakers.
Bakelite Parts was invented in 1907 by Leo Baekeland, a Belgian scientist living in the US It is a phenolic resin which after curing will not burn and cannot be softened or re-melted. It is warm to the touch, moisture resistant and polishes to a soft Luster.
These qualities made this plastic the perfect material for so many things. Eventually earning the label “the plastic with a thousand uses”.
Since it could resist heat without melting or burning Bakelite was ideal to manufacture the first telephones, radios, stove knobs, and electric clocks. While also finding uses as drawer pulls, cutlery handles, desk and vanity sets, poker chips, umbrella handles, and On and on. As you can see, this invention was revolutionary to the US manufacturing industry.

 

Bakelite Parts Pieces Can Be Very Valuable

While a rhinestone piece may bring a bundle at an auction simply because it’s pretty: the unique thing about old plastics is they’re often overlooked. The inexperienced eye may dismiss a Bakelite Parts piece as cheap plastic: and I can think of numerous times I’ Ve gotten a great deal: simply because my competition didn’t know what it was. And I’ve picked it up at garage sales for next to nothing: simply because the former owner dismissed it as worthless. But as serious collectors know: Bakelite Pieces can be very valuable.

The tests for Bakelite are simple: you can rub some household ammonia on it with a q-tip: a positive test will turn the q-tip yellow, regardless of the color of the item. This works because Bakelite was made with formaldehyde, and Formula causes 409 and Scrubbing Bubbles also work, or my favorite, Simichrome cream. Simichrome is controversial, as it has an abrasive component that may take some color off of a non-Bakelite piece and yield a False positive: but if the item is a color other than yellow or brown, that’s not an issue.

Learning to recognize Bakelite without a test is the most effective way to find it. It takes some practice, but once you’re familiar, you’ll find it when no one else gives it a second glance. True Bakelite is dense, free from Seams, and heavy for it’s size. It oxidizes with age, which causes a brownish tint to the pastel colors: you won’t find bright whites or colorless clear pieces. If in doubt, a simple test is to rub it enough to heat it Up, then check for a formaldehyde smell. It’s accurate, but the smell can be difficult to detect: and not something you should try on a necklace strung with 70 year old string that may be ready to fall apart: particularly if you don’t Own it yet. Learning to recognize Bakelite by simply looking at it will always give you the best advantage.

Home Screw Elevator Can Speed Up?

Currently, the world’s fastest elevator is located at the Shanghai World Financial Center. It runs at 3,600 feet per minute, and you are barely uncomfortable throughout the run due to rapid decompression. Future elevators, like airplanes, will also be equipped with pressure chambers. This will allow the Screw Elevator how fast it will be.
But the decline is another matter: it is said that despite the pressure chamber, the elevator is not allowed to drop at a speed of more than 2,000 feet per minute without damaging people’s hearing.
In the future, the speed of screw-type home elevators will be faster and faster?
Many people can consult the screw-type home elevators, but it is OK.
According to the standard of household elevator manufacturing, the current European standard for household elevators is 0.15m/s, and the national regulations for traditional domestic traction elevators cannot exceed 0.4m/s.
Regarding the speed increase of the Screw Elevator, Xiaobian is not recommended for the time being. The first one does not meet the European elevator standard. Second, the home use does not recommend the speed too fast. Third, the speed increases, the friction coefficient between the screw and the nut is serious, and the elevator will be shortened. Service life.
Variable frequency traction household elevators, intelligent hydraulic household elevators and imported screw elevator products are highly praised by users. For inquiries, please call 400-861-8818. Our professional sales will provide you with one-to-one VIP personal customized service. .

Bakelite Parts Is The Main Form Of Art Plastics

Bakelite was the major form of “art plastic” from the 1930s through to the 1950s.
It was patented by Belgian born Leo Hendrik Baekeland in New York, in 1907, and was the first truly synthetic and thermosetting plastic. Thermosetting meant that it could not be melted or changed by heating once formed.
Once set, this plastic was unaffected by heat, solvents or acid, and was electrically resistant and shatterproof. Neither would it crack or discolour when exposed to sunlight.
Bakelite Parts NutcrackerBakelite Bowl with Nutcracker
Promoted by Baekeland as “the material of a thousand uses”, the first form was moulded, containing phenol formaldehyde, which was used for telephones, light switches, electrical insulators, car parts and many other industrial items. But these were a drab black or Brown in colour.
Australian AWA Bakelite RadiosAustralian AWA Art Deco Radios Photo by Scott Beveridge (rollerboy76, Sydney)
In the 1920s a whole new range of colour was introduced and thermosetting plastics took off to invade every area of ​​modern life. Now cast into tubes, rods and sheets it could be made into almost anything.
Reds, greens, yellows and oranges appeared in everyone’s kitchens with dinnerware and cooking utensils.
And it wasn’t just the kitchen. Plastic infiltrated throughout the whole home with clocks, radios, telephones and toys all in bright, vibrant colours.
Read about Art Deco Radios from all over the world. . . .
Jewelry, and designer objects made from Bakelite, Casein and Celluloid appeared at the 1925 Paris exhibition from which Art Deco got its name. The motifs of Art Deco design were expressed in the new plastics among the interiors created by the best artists and designers in each Country’s pavilion.
The beauty and durability of this magic plastic began to be appreciated with luxury items produced which have survived to this day. It was even used in the fittings and furnishings of the Queen Mary and the Normandie, luxury liners crossing the Atlantic in the 1930s.

Optical Cable Connector Box Can Cause Several Forms Of Optical Loss

Insertion loss
Put simply, insertion loss is the measurement of light that is lost between two fixed points in the fiber. It can occur when Optical Cable Connector Box are spliced ??together, connected, or sent through additional passive network components. IL is often attributed to misalignment, contamination, Or poorly agents connectors (ferrules) and has long been used to advocate fusion splicing. However, in reality, the attenuation difference between fusion splicing and manual connections is marginal (less than 0.1 dB).
Many a time, I have watched a splice engineer perform a perfect fusion splice onto a mass-produced, low-cost commodity pigtail, because the Optical Network Terminal (ONT) called for an SC or LC connector (you don’t see many connected By stubs of fiber).
It’s also true to say that significant IL in fiber can be attributed to micro and macro-bending, cracks to the glass caused by over-tensioning (pulling) or by crush and impact damage. This is often the worst kind of attenuation because it can Take time to develop and is much more difficult to pinpoint.
Another reason for fiber seemingly exhibiting high IL in fiber to the home (FTTH) networks is the route of the cable itself. For example, a Fiber might travel 10km from the OLT to the curb and lose less than 1dB, and then go on to Los three times as much in the next 100 meters. Multi dwelling units (MDUs) are a great example of complex fiber routes, and it is especially important to protect bend radii, such as with dedicated raceways or microducts. Fiber can quite alternative become tightly Coiled twice at 20mm 0.4dB, three times and… you get the picture. coiled or kinked during installation; even bend insensitive G657A1 fiber coiled just once to 20mm diameter will see as much as 0.2dB loss.
It is still true that connectors are the most likely cause of high IL, but it’s unfair to think of them as the only culprit. In reality, we can manage connector losses by stipulating the IL standards of the cables we buy, and training installers to Reducing the number of components within the network also logically lowers the insertion loss, so consider this if you’re simply using your splice machine to fuse poor quality components together.
2. Return loss

It is the amount of signal reflected back towards the source due to an impedance mismatch – effectively, if this is too high, the laser within the network may stop transmitting Exact.
Many systems can cope with 40dB return loss (RL), equivalent to 0.01 per cent of the power being sent back. FTTH, however, is more demanding, and RL cannot be more (lower) than -60dB, sometimes higher. To achieve these Ultra-low RL figures – such as 0.000005 per cent or -75dB – optical connectors must have angled ferrules (APC).
As with IL, when planning a network you need to factor in RL, and all equipment should be supplied with a certificate of specification stating both. It is important that networks are tested to specification that there aren’t any unexpectedly high RL figures that indicate Cable, specifically, can show high RL if a gap exists (such as fiber undercut) or if the fiber is broken. Contamination, torsion, strain or poorly seated connectors can also lead to high return losses.
Insertion loss and return loss are not the same thing and, therefore, need to be measured separately. For example, an optical fiber can have a break in it, but still be able to transmit light, resulting in a low IL reading when tested. So the problem wouldn’t be spotted. Measuring the RL on the fiber will pinpoint the issue as the response would be unexpectedly high.
The complexity of fiber networks, and the need to measure optical losses, can potentially lead to confusion. However, careful planning, use of high-quality components and a focus on testing will enable installers to deliver high-speed connections that perform well over the Long term.

Price Impact Of China Home Elevators

As home elevators continue to bring convenience to people, the market has set off a boom in the installation of China Home Elevators, so the market price of home elevators has become a primary concern for everyone. In fact, the price of home elevators is subject to many factors. Time must be considered and carefully selected.
Related to the brand of home elevator
Everyone knows that no matter what product, all the famous brands in the industry are expensive. Compared with the general products, the company will try its best to let the consumers recognize its consistent quality, good service and integrity first. The business philosophy, the painstaking efforts. Therefore, after the successful registration, the brand price is higher, the brand maintains the quality for a long time, and it is generally recognized by the public for a long time, so the brand will rise to the famous brand, and the price will increase at this time. Of course, when you buy the brand, it symbolizes your identity and your trust in the brand, and the branded products will bring you great value for money and enjoyment.
Different models of different models of elevator prices are not the same
All products are the same, home elevators are no exception, there are also multiple models, high, medium, low and different levels. Different models, drivers will naturally be different, raw materials and production design process, performance and comfort and quality are different, in addition, the elevator’s hydraulic and screw and traction and other different driving methods will also affect the market price of the elevator.
The elevator is produced in different places and the price is different.
Elevators imported from different countries, the prices of elevators produced by different domestic manufacturers are also different, and the cost of imported elevators is higher. Import tariffs, imported product value-added tax and other expenses are added to the price, so the price It must be higher than the domestic one.
Other factors can also cause the price of the elevator to be different.
First, the number and height of the building, the higher the floor, the more the number of landings, the cost will gradually increase; the second is the difference between the hoistway and the hoistway, whether there is a car, the depth of the foundation pit , especially the steel structure, it is necessary to clarify the quotation; third, the elevator configuration is different, the function of the elevator will be different, and the price will be different; the fourth is the transportation cost of the elevator, the distance of the road, the installation labor cost, etc. will also make the price Rise; Fifth, maintenance and maintenance costs in the later stages of elevator use are also one of the reasons for the different prices.
In short, when the owner purchases the elevator, he must consider all aspects, and try to buy an elevator that is trustworthy, good quality, good after-sales service and safe. Detail attention to China Home Elevators