Product category:
Thermal and weld hardfacing, coating and overlaying
News Release from: Technogenia | Subject: Ultra-high-performance anti-wear coating
Edited by the Manufacturingtalk Editorial
Team on 04 September 2006
Hardfacing systems protect against
abrasion
Optimized hardfacing systems protect diameters subjected to heavy stress and thrust surfaces with high-yield strength to mmet the needs of bricks and tile production in the ceramics industry.
The special needs of bricks and tile production in the ceramics industry require an ultra-high-performance anti-wear coating that corresponds to a part's desired yield It must also be free of any friction and have an excellent resistance to severe abrasion
This article was originally published on Manufacturingtalk on 18 Apr 2006 at 8.00am (UK)
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A special tungsten-carbide powder provides exceptional anti-abrasion characteristics for frequently used wearing parts involved with sand regeneration and producing casting molds.
Depending on the clay environment, Technogenia offers optimized hardfacing solutions for protecting diameters subjected to heavy stress and thrust surfaces with high-yield strength.
The Technocasting process is used to produce dies for tiles and bricks, guaranteeing exceptional useful lifetime.
This process uses a mold to coat complex-shaped abrasion and wear points on a part, such as a grooved piece or the inside of a cylinder.
It is ideal for die cores and combs for bricks, combs and dies for tiles, and disk crusher plates for chamotte and refractory materials.
This technique is closely allied with foundry methods, infiltrating an alloy of a hard solder with a quantity of tungsten-carbide grains that is then effected in a mold.
For example, to hardface the inside of a tube, a sand mold is made around a tube and a sand core is made for the tube's interior, leaving a small space to deposit the tungsten-carbide grains.
A hard solder that starts at the top of the mold is melted using the Technocasting process, which then infiltrates the hardfacing grains by capillary action, coating the inside of the tube.
The sand mold and core are then removed, leaving the tube and finished hardfaced interior.
The company's tungsten-carbide cords, Technodur and Technosphere, are suitable for hardfacing larger, more accessible surfaces and can be applied to mill roll scrapers, auger blades, pug mill paddles and propellers, wet mixer paddles, extruder and filter mixer grills, filter mixer scraper, kibbler roll teeth, and bucket wheel teeth.
The cords differ in diameter and strength and are welded to the area of the part that is subjected to abrasion or other stress when in use.
* About Technogenia - since 1979 Technogenia has provided hardfacing solutions for various industries such as oil drilling, mining, foundry, aluminum, iron and steel, paper, food processing, ceramic and brick, and waste recycling.
Today, Technogenia's solutions allow easy service for parts, direct on-site intervention without disassembly, and a longer parts lifetime.
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