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Henan Ascend Machinery & Equipment Co., Ltd. was established in 2005 and it is located in the high-tech zone of Zhengzhou City, Henan Province. As a technology driven mining equipment company, it is committed to the R&D, production, sales and after-sales service of mining machinery and equipment.
Company Strength: The company possesses 40 years of production experience and three large-scale factories, as well as exports to more than 160 countries. There are abundant hot-selling projects accessible to you.
Our Service: 24/7 online customer service, free customized solution from our engineers, field visiting of China industries, training support after the delivery of goods, 365 days of online after-sales service, and post-maintenance plan.
Cheap and environmentally friendly: Factory-direct sale, fast delivery with guaranteed quality at factory price, in line with the concept of environmental development.
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The company's main products are crushers, grinding mill equipment, mineral beneficiation equipment, rotary dryer and crusher & grinding mill spare parts. In addition to the Chinese domestic market, Ascend machinery expands its business in more than 60 countries and regions.
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Crusher for sale includes many different types. According to the crushing way, Our crusher machine has a jaw crusher, cone crusher, impact crusher, gyratory crusher, compound crusher, roll crusher, etc. According to the materials of crushing, a big crusher machine includes stone crusher, rock crusher, limestone crusher, quarry crusher, coal crusher, granite crusher, gravel crusher, gypsum crusher, ore crusher and so on. Now, I will introduce some important and common crusher machines for you
Jaw crusher is usually used for coarse crushing, which is suitable to crush hard materials. Although the jaw crusher machine is an old type of crusher machine, it is widely used in various of industries because of its simple structure, easy production, and maintenance. Its working principle is simple. Jaw crusher machine produced by Aimix crusher machine suppliers mainly uses the extrusion pressure between a reciprocating jaw plate and a fixed jaw plate to crush materials. Its features are as follows: high production capacity; simple structure; easy production and maintenance; reliable performance; not easy to jam
Our company mainly sells three widely used jaw crushers, PE series stationary jaw crushers, production capacity: 1-1000 t/h; VPE series mobile jaw crusher, production capacity: 100-500 t/h; PEX series mobile small jaws crusher, with a capacity of 3-5 t/h
PE series jaw crusher is suitable for crushing various hardness materials such as rock, ore, slag, and concrete, and is widely used in various Industries and has strong adaptability. It is a classic model in the crushing machines
This mobile crusher is mainly launched to adapt to the undesirable terrain conditions, especially for some remote and more complex terrain areas in the Philippines, it is very suitable for choosing this equipment. It has a simple structure, does not require complex foundation construction, and can quickly reach any location on the construction site, saving the time cost of the project
The cone crusher mainly used to crush medium and high hardness materials in the stage of medium or fine crushing. As its name implied, the cone crushing machine is similar to the circular cone. Its working principle is that the material is placed between the inner and outer cones. The outer cone is fixed, and the inner cone is eccentric oscillating to crush the material clamped in it. Among all crushing machine, the structure of the cone crushing machine for sale produced by our crusher machine manufacturers is the most complicated. Its features are as follows: large reduction rate; high production capacity; high automatic degree; less wearing crusher spare parts and long service life; flexible application and strong adaptability
Beginning with the use of chrome plating in the art deco designs of the 1930s through its heyday in the cars, furniture and appliances of the 1950s and 1960s, chromium has been closely associated with the fast-paced modern world. Unlike other metals, chromium had no ancient or prehistoric uses
High amounts of chromium are found naturally in two minerals. The more common, called chromite, is a dark, dull stone that was easily overlooked. The second, a mineral called crocoite, is unusual in appearance but extremely rare. Crocoite, also known as lead chromate, was discovered by a geologist in 1765 at the Beresof mine near Ekaterinburg, Siberia. A brilliant orange, the mineral was prized by early stone collectors for its four-sided crystals. Artists also treasured fragments of crocoite for their beautiful, reddish orange color. But the ore is too rare to be useful commercially. Chromite, the primary commercial ore, was not discovered until 1798
The chromium element was isolated in 1797 by the French chemist Louis Nicholas Vauquelin. He named the element from the Greek word for color, “chroma,” because each chromium compound he produced was a brilliant color. He found reds, bright yellows and deep greens and discovered that traces of chromium in a Peruvian emerald were responsible for its color. Others later discovered that the ruby also takes its red color from chromium
In 1799, a German chemist living in Paris found chromium in a dark, dull stone that would become to be called chromite. This mineral was more plentiful than crocoite and the greater availability of chromium facilitated innovation and discovery in a wide range of industries
The colorful chromium chemicals for which Vauquelin named chromium soon found practical application in the textile industry. Before the advent of synthetic dyes, all dyes came from natural sources such as minerals and plants. Often these dyes faded quickly if the dyed material was laundered. To fix or stabilize the color, chemical agents called mordants were used. Chemically, the mordant binds with the dye and the fibers of the material, preventing bleeding and fading. As early as 1820 the cotton and wool industries were using large amounts of chromium compounds such as potassium bichromate in the dyeing process. Red and green pigments developed from chromium compounds were also used for printing wallpaper during this period
In 1822 one of Vauquelin’s pupils, Andreas Kurtz, moved to England and began producing potassium bichromate and selling it to the English textile industry at 5 shillings a pound. Local manufacturers soon followed suit and competition drove the price down to 8 pence, about an eighth of the original price. This did not give Kurtz a satisfactory profit, so he began producing other chrome compounds, specifically chrome pigments. His chrome yellow achieved vogue status when the popular Princess Charlotte, daughter of British monarch George IV, had it used to paint her carriage. This was perhaps the origin of the “yellow cab,” an idea exemplified today in New York City taxis. Kurtz left his mark on the world of color; “Kurtz yellow” is still available in British color catalogues
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