Steel ball is the important basic part of ball mill, and its main purpose is to grind materials, which can make the material finer.
Barite can be used as white pigment, aggregate of radiation protection, the padding of chemical, paper and textile fields and the cosolvent in the glass production.
Fly ash dryer produced by Fote Machinery is commonly used for drying fly ash, phosphor gypsum, industrial dust and waste slag. It has several features such as reliable operation, excellent drying effect, high thermal efficiency and large capacity.
Symons cone crusher, also known as Symons crusher, is the integrated cone crusher with springs and hydraulic cylinder.
Mixer is the necessary equipment which mixes the drug and pulp to add the reaction time of chemical agent and strengthen drug reaction quality.
Cone crusher is mainly used for the secondary and tertiary crushing in mine and construction aggregates production industry. It is also suitable for medium and fine crushing of rocks with below 350 MPa compressive strength,
Pendulum feeder is used in ore dressing industry, coal, chemical industry and other departments, which can transfer the granular materials from the storage tank to various types of feeding devices through the funnel.
Mudstone that is composed of clay mineral is a kind of sedimentary rock. Mudstone is widely used in industry field for its features of high stickiness and fire-resistant.
Three-drum dryer is also called three-cylinder dryer, whose main body is composed of three concentric circles of different diameters in inlaid combination.
Slag dryer is widely used in building materials industry, metallurgy industry, ore dressing industry, chemical industry, cement and other industries.
Activated carbon is a black porous solid material with extensive application. With strong adsorptivity, activated carbon is widely used in chemical industry, food industry and environmental protection industry.
Spiral chute is the highly efficient equipment for gravity separation, which has advanced technology both at home and abroad.
Lignite is a kind of mineral coal with minimum coalification degree. Because it is rich in volatile elements, it is easy to be burnt and generate smoke.
Stone crusher is also known as rock crusher, which can be divided into large stone crusher, medium stone crusher and small stone crusher machine, customers can choose the appropriate model according to their actual needs.
Coal mill is a kind of ball mill, which is often used to crush and grind coal bricks into powder, so it is also called coal grinding mill. Coal mill is the main equipment in cement plant, which is used for drying and grinding of coal.
Raw mill is also called raw material mill, which is the important equipment in the production process of cement. It has large application ranges such as raw mill in cement plant, building materials, metallurgy,
Mobile cone crusher is a kind of mobile rock crusher, which is mainly used in fine crushing field. In sand and stone production operations, according to the different types and usages of stones,
Bentonite is a kind of clay rock, which often contains a small amount of illite, kaolinite, chlorite, zeolite, quartz, feldspar and calcite.
Each optical surface is tested up to 29 times as it passes through its many processes of being turned from a blank piece of glass to a highly accurate figured mirror or lens. Below is our selection of Telescope Mirrors available to purchase and a brief description of each grade39s qualities.
Mirror Blanks For Telescopes United Lens Company supports both the professional and amateur astronomical community. Weve sold classic test plate and mirror blanks for nearly as long as ULC has been in business. Additionally, we provide highend custom solutions including the application of durable thin film mirror and antireflective coatings.
telescope making, mirror grinding, homemade tripod, eyepieces, astronomy Now you need to decide about the focal length of your future mirror. If you are making this mirror to practice your skills for a future, large mirror you want to make, a fast
Aluminising, Testing Materials HOME PAGE TELESCOPES ASTRONOMY Telescopes Astronomy Telescope Mirrors, Blanks, Tools, Aluminising, Testing, and Materials for Mirror Making. Please email or call for information, pricing confirmations and shipping
Rough grinding a telescope mirror. The Joy of Mirror Making Mel Bartels Rough Grinding More importantly, the glass tool can be saved and used later as a mirror blank for a second project. Grinding Stands. I use an old printer stand. Here is a 25 inch 635cm mirror being rough ground followed by a beautiful grinding stand from the Delmarva
Want to build your own telescope Start with one of our telescope mirror kits. Each kit comes with a telescope mirror blank and all the abrasives silicon carbide grits and white aluminum oxide powders, cerium oxide polish and pitch to grind and polish it to your specifications.
Throughout the grinding and final lapping stages, the objective has been to reduce pits and scratches to the smallest possible size. However, no amount of grinding can produce a surface smooth enough or sufficiently transparent to meet the needs of a firstclass telescope objective. Different techniques are needed.
TELESCOPE MIRROR BLANKS MADE TO YOUR SPECIFICATIONS If one of our standard telescope mirror blanks isnt exactly what youre looking for, Advanced Glass can custom make a
What are the best sources for mirror blanks? posted in ATM, Optics and DIY Forum Ever since I found Stellafanes mirror making page, Ive been itching to build my own telescope. Im going to start with a 68in. Newt the classic beginning ATM project!. All I need
Now that I have several blanks made, it is time to grind and polish one into a telescope mirror and test it out. I can use one blank as the mirror and another as the grinding tool, and have a couple in reserve in case something goes horribly wrong during the grinding and polishing operations. I39ll post an update once a mirror is completed.
How to grind a mirror blank into the wellfigured basis for a Dobsonian telescope. How to grind the glass, how to carry out a focus test, how to polish with a pitch lap and how to find the focal
Corning no longer produces Pyrex for optical use, however Advanced Glass Industries has a limited stock of Pyrex in house. AGI also supplies Schott SUPREMAX 33 mirror blanks. SUPREMAX 33 is a borosilicate Pyrex equivalent, and is an excellent alternative for telescope mirror blanks. Our blanks have the following standard characteristics
What are the best sources for mirror blanks posted in ATM, Optics and DIY Forum Ever since I found Stellafanes mirror making page, Ive been itching to build my own telescope. Im going to start with a 68in. Newt the classic beginning ATM project. All I need now are the materials I can find the yogurt containers pretty easily. For the rest of it, I had to do a little searching. For the
There are many reasons for grinding your own mirror. Either you want a unusual size, or focal length, or to satisfy your curiosity, or to have the 34pride of achievement34 by fabricating something as precise as a telescope mirror.
Welcome to King Telescopes Not an impressive website. However, we are not in this for a profit. Our intent is to provide a source for lower cost, mirror blanks, and supplies for grinding your own telescope mirror. If I had known as a kid how, well not easy, but indeed
Grinding thin telescope mirror blanks Thin glass mirror making techniques differ only slightly from standard mirror making practices. Keep these principals in mind when grinding and polishing your thin mirror blank, and youll be fine. Also, be sure to support your
Casting a Large, LightWeight Telescope Mirror From Recycled Glass The first photo below shows a 12.5 inch diameter, 1.5 inch thick, telescope mirror blank, made from recycled glass, that has been lightened by casting the mirror in a mold that made lots of hexagonshaped pockets in the back of the mirror. This is
Mirror Blanks For Telescopes . United Lens Company supports both the professional and amateur astronomical community. Weve sold classic test plate and mirror blanks for nearly as long as ULC has been in business. Additionally, we provide highend custom solutions including the application of durable thin film mirror and antireflective coatings.
When grinding a telescope mirror, you will find that plate glass takes less time to grind and polish than a mirror made from borosilicate glass. Please see the Buy Telescope Mirror Blanks page for low prices on plate glass mirror blanks. If you39d like to buy a complete mirror grinding KIT, with all abrasives and grinding tool included, please
We offer a range of products and services for the ameteur telescope enthusiast such as grinding powders, polishing powders compounds, telescope aluminising services. We offer a Telescope mirror re coating service for both Primary and Secondary telescope mirrors. We also offer a recoating service for Sextant mirrors. Please contact us for
My Mirror Grinding Machine. For a long time I39ve wanted to build a machine for grinding telescope mirrors. Dennis Rech39s MoM designs finally inspired me to just get up and do it. Over the years, I39d been collecting motors, gear boxes, pulleys, etc.
On the opposite, a shallow mirror e.g. FD 8 will be performing very well on planets and the moon. The theory behind grinding is that you can remove glass as long as you use a material with a higher hardness. Telescope makers use silicon carbide powders a.k.a. carborundum for this task. It is cheap and comes in various size can range
Mirror blank kit posted in ATM, Optics and DIY Forum Could somebody please point me to a source where I can purchase a kit for grinding a 6 mirror for a Newtonian type telescope? Thank you! You dont really need to but a kit if you dont want to. I use GotGrit for my supplies. for my supplies.
Welcome to King Telescopes Not an impressive website. However, we are not in this for a profit. Our intent is to provide a source for lower cost, mirror blanks, and supplies for grinding your own telescope mirror. If I had known as a kid how, well not easy, but indeed not as hard as I would have expected to grind my own mirror.
Mirror Blank. This is the focus of all your work you will turn this flat piece of glass into an accurate parabolic telescope mirror. We recommend a full thickness Pyrex blank for mirrors up to to 1234 in size. Fullthickness means the diameter to thickness ratio is 61 i.e. an 834 full thickness mirror is 1.334 thick.
US suppliers of Mirror Blanks, Grinding amp Polishing Supplies, and Telescope Making Supplies. Astronomy Clubs Many can offer help with your project. Astronomy Conventions amp Star Parties A good place to look at various telescopes and chat with their owners. Mirror Making Courses amp Workshops
Purchase telescope mirror blanks here. We provide 6 inch, 8 inch, 10 inch, and 12 inch telescope mirror blanks in standard 34 thickness, and larger mirror blanks up to 20 inches in 1 thickness. All of the mirror blanks we sell are individually tested to be free of
When grinding a telescope mirror, you will find that plate glass takes less time to grind and polish than a mirror made from borosilicate glass. Please see the Buy Telescope Mirror Blanks page for low prices on plate glass mirror blanks. If youd like to buy a
Telescopes amp Astronomy Telescope Mirrors, Blanks, Tools, Aluminising, Testing, and Materials for Mirror Making. Please email or call for information, pricing confirmations and shipping prices. TELESCOPE CONSTRUCTION WEB SITE. OTHER PRICE LISTS. UPDATED 7th June 2014. TELESCOPE GLOSSARY. BBC Sky at Night. How to Make a Mirror.