case hardening by carbon or carburizing
Case hardening is one of the thermochemical processes.
hot rolled strip for case hardening, quenching or cladding
The present invention makes a proposal on a case hardening steel which exhibits excellent forgeability even at low temperature and which exhibits excellent fatigue strength after carburizing treatment.
The present invention relates to a method and system for continuous case hardening of work pieces.
case-hardening steels with grain size control
New Case-Hardening Steel Designed for Laser Powder Bed Fusion.
Method and installation for heat treatment in connection with case-hardening of articles with varying requirements as to heat treatment time.
It may be envisaged that the forming die comprises localized heating means to obtain case-hardening of the portions of the piece that are to constitute the cams following upon the forming operation.
The invention relates to case-hardening of a stainless steel article by means of gas including carbon and/or nitrogen, whereby carbon and/or nitrogen atoms diffuse through the surface into the article.
The green part is permeated with a cementing agent having high temperature properties when cured; the cementing agent binds the exposed ceramic surfaces in the green part.
A process for cementing radioactive wastes into products which are adapted for land disposal and reduced in the leakage of radioactivity and the products of cementation are disclosed.
Embodiments also relate to methods of cementing that include the use of nano-particles.
The invention discloses a method for preparing geopolymer for oilfield cementing applications.
Subterranean operations include methods of cementing well bores.
Carburizing equipment capable of shortening the carburizing time while reducing the cost.
This vacuum carburization is conducted by introducing an acetylene type carburizing gas into a heating atmosphere held at a reduced pressure, and after carburization/diffusion is effected, hardening and tempering are further carried out.
This carburized component is manufactured by vacuum carburizing steel.
The main methods of chemical heat treatment are carburizing, nitriding and penetrating metal.
The critical carburizing conditions involve the upper limit value of carburizing gas partial pressure under which the sample surface layer is austenitized without fusing.
Pack cementation (see A above for out-of-pack cementation) (10
C. Pack cementation (see A above for out-of-pack cementation) (10
C. Pack cementation (see A above for out-of-pack cementation) (10
Pack cementation (see A above for out-of-pack cementation) (10
Pack cementation (see A above for out-of-pack cementation) (10
AMS 2759/7: Carburising and Heat Treatment of Carburising Grade Steel Parts
Carburising to ensure a long service life in difficult environments (shocks, heavy loads, etc.)
Previous carburising prevents decarburization beneath the carbide layer, and contributes to the hardness beneath the carbide layer.
Carburising to ensure a long service life in difficult environments (shocks, heavy loads, etc.)
Depending on the wear characteristic, carburising or ferritic nitrocarburising is commonly used.
prefix 4T for carburized steel, adapted to extreme conditions.
The most widespread carburized free-cutting steel; the addition of silicon guarantees the uniformity of the austenitic grain, while the limited percentage of sulfur allows a successful hardening treatment after carburizing.
Disclosed is a carburized steel member produced by carrying out a specific carburization step, a cooling step and a quenching step.
Non-alloy carburized steel with slightly more carbon than the previous one.
Federal Ordnance M14 and M14A receivers were heat-treated and carburized according to USGI M14 requirements.
blank hardness test
In addition, provision is made of a nitriding phase (C1, C2, C3), which is assigned to the carburization phase (D1, D2) and precedes the carburization phase (D1, D2).
The invention provides a case-hardened steel that not only exhibits sufficient fine-grain strength at high hardening temperatures, but also has a high hardenability.
The invention relates to a two-component or multi-component fastening mortar based on a free-radical curing unsaturated reaction resin for grouting anchoring means into holes or gaps.
Second appointment - placement of the permanent crown
The crown gripping forceps is also used to place an artificial crown for final cementation.
Cementation is continuous in the groundwater zone, so much so that the term "zone of cementation" is sometimes used...
The process of electrochemical cementation is autocatalysed by the controlled metering of the particular form of separated metal.
After carburizing the at least one second surface of the preform is removed and subsequently forged and cooled.
Cementation is continuous in the groundwater zone, so much so that the term "zone of cementation" is sometimes used interchangeably.
The character and extent of settling may be determined.
The hard core is formed from a mixture of particulate cementitious material and liquid.
The low Cr content is a critical factor in enhancing the ease of carburizing the present steels.
Finally, when a final carburizing phase is required, this technology allows a flawless transition between the sintering phase and the low pressure carburizing one, without any interruption.
The above metal tube has a function of shielding the base material from a carburizing gas, and is excellent in the resistance to metal dusting, to carburizing and to coking.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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