nitriding

Hermann Stahlschmidt Stahlges. m.b.h., or HERSTA for short, was founded in 1932 by brothers Hermann and Walter Stahlschmidt in Düsseldorf and has since been run as a family business. In 1980, the company moved to Willich. There, we have not only expanded in terms of space over the last few decades but have also developed further as a company. Today, as a specialist in high-quality steel, we are a...

Gewinde Satelliten Antriebe AG, your roll thread drive expert since 1982 GSA AG specializes in the production of high-precision roll thread drives (RGT). With the know-how gained over generations, GSA AG is now one of the leading internationally active manufacturers of roll thread drives and is certified as an innovative company with ISO 9001:2015 and ISO 14001:2015. Thanks to the hardening shop...

...accessories for valves, Black nitriding treatment...

...We offer both nitriding and nitrocarburizing in gas as well as in salt bath. Both processes are thermochemical methods without a phase transformation. The extremely distortion-free processes prevent dimensional changes during treatment. In both variants, it is a thermochemical treatment where the surface of the workpieces is enriched with nitrogen. This leads to an increase in surface hardness due to the formation of nitrides. Max. dimensions gas: 1800 x 900 x 870 mm Max. weight gas: 2500 kg Applications gas: pistons, spindles, gears, transmission parts, hydraulic parts, tools...

...In gas nitriding, the workpiece surface is enriched with nitrogen (the nitrogen source is ammonia).

... Automotive industry | Medical technology | Aerospace industry | Textile industry | Mechanical engineering | Tool manufacturing Material groups Low-alloy and alloyed steels with a maximum Cr content of 5%. Heat treatments we perform in the field of gas nitriding Gas nitriding Gas nitrocarburizing Oxidizing Combination of gas nitriding or gas nitrocarburizing with oxidizing...

Processes: - Case hardening and tempering in protective gas with PC-supported process control - Annealing or normalizing - Salt nitriding according to the Tenifer process - Post-oxidation (AB1) - Tool steel hardening in a vacuum furnace up to 1250 °C Quenching media gas pressure - Sandblasting with steel shot (grain size 0.6 mm) - Glass bead blasting - Straightening of shafts and bars - Deep freez...

... penetration of the treatment is very slow, on the order of one millimeter of thickness for every 100 hours of duration, although after this the piece does not require tempering. There are different procedures to carry out nitriding: Nitriding in a furnace: the piece is placed in a furnace where ammonia (NH3) is circulated, and it is heated to about 500º so that the ammonia decomposes into nitrogen and hydrogen. The nitrogen, upon coming into contact with the surface of the piece, forms a coating of iron nitride.

...Since no structural transformation occurs during nitriding in the sense of the austenite-martensite transformation, this process is characterized by its good dimensional stability.

...This saves time and costs during production. Collaboration exists for gas nitriding and induction hardening of individual teeth with experts in the field. ZWP helps you modernize facilities and machines (retrofit / retrofitting).

...ALTENA Cast iron made in spinning process, the iron content up to 99.96 %,which is higher in purity and less impurity than ordinary iron cookware. The cooked food can effectively supply the Iron metabolism of human body needs, more healthy after long-term use. Brand new nitriding upgrade technology, the rust resistance performance is extremely well, does not contain any coating, excellent scratch resistant and superior durable.

... chemical polishing and passivation of copper and copper alloys recrystallization annealing and tempering. Heat treatment: Hardening and tempering nitriding and nitrocarbunizing carburizing and carbonitriding annealing and other treatment.

...Gas Nitriding – Surface treatment Quench Hardening / Tempering – Heat cooling process treatment.

...Galvanotechnics (Anodizing, Bluing, Passivation...), Heat Treatments (Hardening and Nitriding Processes...) and Mechanical Processes (Shot Peening, Engraving...)...

...UNALLOYED CONSTRUCTION STEELS 1.0038 S235JR 1.0402 C22 1.0577 S355J2 St52-3 1.1151 C22E 1.1141 C15E Ck45 1.1181 C35E Ck35 1.1191 C34E Ck45 1.1221 C60E Ck60 1.1740 C60W ALLOYED CONSTRUCTION STEELS 1.7131 1.7147 1.7218 1.7220 1.7225 1.7238 1.7335 1.7735 1.7765 1.7792 1.8159 1.8161 1.8507 1.8519 1.8550 1.8588 1.8845 AUTOMATIC STEELS TOOL STEELS APPLICATION STEELS HEAT TREATMENT STEELS NITRIDING...

...Heat Treatment Our heat treatment suppliers are certified by the aerospace and automotive industries. Annealing Normalization Stress Relief Quenching and Tempering Vacuum Hardening Homogenization Decarburization Nitriding Carburizing Cementation...

...Telescopic Rails with Ball Bearings The Telerace product family includes telescopic guides made from steel or profiled metal sheet, which undergo a deep treatment for nitriding and a process for black oxidizing. They are also available in stainless steel. The Telerace linear guides are ideal for harsh environmental conditions, as they are highly resistant to dust and dirt due to their large...

...BTF sa, the ideal partner for your heat treatment needs, tailored solutions for production or research!! BTF specializes in the design and construction of various types of industrial furnaces and ovens intended for all sectors of industry and research laboratories. The temperature range of the manufactured installations extends up to 1,800°C. They can be designed to operate in air, under inert gases, in a vacuum, or to perform special heat treatments such as carburizing, (carbo-) nitriding, ...

...Nitriding in Salt Bath: Salt bath nitrocarburizing always involves the introduction of atomic nitrogen into the tool surface. Additionally, by adding small amounts of atomic carbon.

... resistance but also increased ductility. Unlike other hardening processes, the enhancement of the achieved properties is not based on martensite formation, but rather on the formation of nitrides (gas nitriding) or carbonitrides (nitrocarburizing).

...Large range of forging billets for the following markets: Oil and gas: flanges, valve bodies, valve balls, shells, B.O.P., gate bodies, pipes, and wind energy production. Available in the following categories: carburizing steel, heat-treated steel, creep-resistant steel, martensitic stainless steel, bearing steel, tool steel, alloy steel, and nitriding steel.

... Surface treatments may be done as follows: Galvanizing, nickel, brown, hot-dip galvanizing, phosphating, anodizing, chrome plating, painting, powder coating, plasma coating, sandblasting, Tuflok coatings. All common surfaces as VDA standard are possible (zinc-nickel, zinc flake). Heat treatments such as Plasma / gas nitriding, carbonitriding, hardening, carburizing, vacuum hardening, tempering etc. Strength classes:3.6 - 12.9 Materials:all major machine materials...

...-treatment, Nitriding treatment, Electroplated hard-chrome finish, High-frequency quenching, Spray coating bimetallic-alloy, Vacuum quenching. Customer’s specification and drawing are accepted in the manufacturing various materials of pillars, columns, tie bars, guide rods which applicable to various plastic, rubber injection molding machine, hydraulic machine, diverse machine tool etc. (Special dimension and spec. are also acceptable. ) ...

...We harden your products in our own furnace, which is one of the few gas nitriding furnaces in the world. -With our Nitriding Report and Witness Sample-...

...Plasma nitriding allows for the hardening of the surface of stainless steels, as well as other high-chromium steel grades.

...HT-Tools Pro is a powerful simulation tool for designing and optimizing recipes for carburizing including low-pressure carburizing, carbonitriding, as well as nitriding and nitrocarburizing processes. It can significantly reduce the lead time for process development, replacing time-consuming evaluations and trials.

... running and sliding properties improve. At the same time, high dimensional stability is ensured, as there is no phase transformation in the sense of austenite-martensite transformation. Typically, layer thicknesses of up to 0.8 mm are achieved. The profundizing process developed by Dr. Ing. Helmut Reese even allows for material-dependent nitriding hardening depths that exceed 1.0 mm. Low-distortion nitriding can – provided that appropriate steels are used – often replace case hardening or surface hardening. Nitriding steels can be found in DIN 17211 or EN 10085.

...The surface layer is chemically altered by the incorporation of nitrogen at temperatures ranging from 400 to 600°C. Minimal distortion. Plasma Nitriding The surface layer is chemically altered by the incorporation of nitrogen at temperatures ranging from 400 to 600°C. By adjusting the treatment parameters of temperature, time, pressure, and gas type, the formation and composition of the compound and diffusion layers can be precisely controlled.

...The nitriding hardening in vacuum using ion bombardment in the plasma of a modified gas discharge is a process for surface treatment of workpieces made of, for example, iron, steel, or cast iron. In a retort, a direct current is applied between the workpiece surface and the retort wall, with the workpieces primarily configured as the cathode and the retort wall as the anode. The atmospheric pressure is evacuated, and at a constant low-pressure range, the gas discharge is initiated in a reactive treatment gas by applying a base voltage.

...Nitriding is a process that allows for the surface hardening of steel through the use of nitrogen. For this treatment, Alfa T.T. has 2 furnaces available. The company also performs nitrocarburizing.