# Our Offered Machines to you

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#### HGT Hydraulic Gyratory Crusher

HGT Gyratory Crusher is a new-type intelligent coarse crusher with big capacity and high efficiency. It integrates mechanical, hydraulic, electric, automated, and intelligent controlling technologies which grant it with advantages traditional crushing

#### European Type Jaw Crusher PEW

Jaw crushers has stationary jaw crusher, portable jaw crusher and mobile jaw crusher (crawler jaw crusher). Jaw crusher (PEW Series) is not only able to be used together with mine-selecting and gravel processing equipments but also be used independen

#### Jaw Crusher PE

Jaw crusher is driven by a motor, and the moving jaw moves up and down via eccentric shaft. The angle between fixed jaw and moving jaw becomes smaller when the moving jaw runs down, then the materials are crushed into pieces. It will become bigger whe

#### HPT Hydraulic Cone Crusher

Base on the latest technology and decades of years’ producing experience, Our Company designed the HPT series cone crusher. It has excellent crushing efficiency and good hydraulic control system. Now the HPC series cone crusher has wide application

#### HST Hydraulic Cone Crusher

HST Single Cylinder Hydraulic Cone Crusher is a new high-efficiency cone crusher independently researched, developed and designed by SBM through summarizing over twenty years of experience and widely absorbing advanced American and German technologies

#### CI5X Series Impact Crusher

CI5X Impact Crusher breaks materials with impact force. When materials enter the working area of hammer, they may be crushed under the high-speed shock and then thrown onto the impact device above the rotor for another crushing. Next, materials bounce

#### VSI6X Series Vertical Crusher

Due to the increasing market demand for the scale, intensification, energy conservation, environment protection and high-quality machine-made sand, SBM, a Chinese professional sand maker manufacturer, further optimizes the structure and function of tr

#### VSI5X Vertical Shaft Impact Crusher

VSI Crushers Working Principle Raw material falls down into feed hopper, and then enters rotor through central entrance hole. It is accelerated in high-speed rotor, and then is thrown out at speed of 60-75m/s. When hitting anvil, it is crushed. Final

#### VSI Vertical Shaft Impact Crusher

VSI Series vertical shaft impact crusher is designed by reputed German expert of SBM and every index is in worlds leading standard. It incorporates three crushing types and it can be operated 720 hours continuously. Nowadays, VSI crusher has replaced

#### VUS aggregate optimization system

The VU system is a global most-advanced dry-process sand-making system. The system is constructed like a tower. Its fully-enclosed layout features high integration. It integrates the functions of high-efficiency sand making, particle shape optimizatio

#### MTW-Z European Trapezium Mill

MTW European Grinding Mill is innovatively designed through deep research on grinding mills and development experience. It absorbs the latest European powder grinding technology and concept, and combines the suggestions of 9158 customers on grinding m

#### 5X Series Roller Grinding Mill

Grinding roller of MB5X Pendulum Roller Grinding Mill l adopts diluted oil lubrication. It is a technology initiated domestically which is maintenance-free and easy to operate. Diluted oil lubrication is oil bath lubrication, more convenient than grea

#### MTW Trapezium Mill

MTW European Grinding Mill is innovatively designed through deep research on grinding mills and development experience. It absorbs the latest European powder grinding technology and concept, and combines the suggestions of 9158 customers on grinding m

#### LM Vertical Mill

LM Vertical Grinding Mill integrates crushing, drying, grinding, separating and transport. The structure is simple while the layout is compact. Its occupational area is about 50% of that of the ball-milling system. The LM grinding mill can also be arr

#### TGM Trapezium Mill

TGM Super Pressure Trapezium Mill The operation principle of main unit of Trapezium mill is that main unit runs with the central shaft that is driven by a gear box. The top of the shaft is connected with a quincunx stand on which a grinding roller is

## Case-hardening - Wikipedia

Case-hardening or surface hardening is the process of hardening the surface of a metal object while allowing the metal deeper underneath to remain soft, thus forming a thin layer of harder metal at the surface. For iron or steel with low carbon content, which has poor to no hardenability of its own, the case-hardening process involves infusing additional carbon or nitrogen into the surface layer. Case-hardening

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## What is Case Hardening and How it is

25/10/2018  Case hardening is being practiced in western countries for a long times. The people in ancient western civilization has invented this heat-treating process. There are certain metals like iron or steel, that have very low hardness. In such cases, the case hardening produces a layer of nitrogen or carbon on the surface of the metal. And this layer provides greater hardness than the original surface

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## Case hardening (surface hardening) -

08/07/2018  Single quench hardening is a special case hardening process. It is suitable for steels that tend to form coarse grains during carburizing or for components that still require intermediate machining before hardening. In this process, the steel is cooled slowly after carburizing. For the actual hardening process, the steel is then heated again in a separate process step. The $$\gamma$$-$$\alpha$$

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## Steel Surface Hardening (Case

27/02/2021  Another method involves carburizing the entire part, then removing the case in selected areas by machining, prior to quench hardening. Nitriding The steel part is heated to a temperature of 900-1150°F (482 to 621°C) in an atmosphere of ammonia gas and dissociated ammonia for an extended period of time that depends on the case depth desired.

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## case hardening machine, case hardening machine

2,914 case hardening machine products are offered for sale by suppliers on Alibaba, of which machining accounts for 52%, other metal metallurgy machinery accounts for 1%, and industrial heater accounts for 1%. A wide variety of case hardening machine options are available to you, There are 2,114 suppliers who sells case hardening machine on Alibaba, mainly located in Asia. The top countries of suppliers are India, China, and India, from which the percentage of case hardening ...

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## Heat treatments for CNC machined parts 3D Hubs

Before CNC machining: ... Case hardening is a family of heat treatments that result in parts with high hardness on their surface, while the underline materials remain soft. This is often preferred over increasing the hardness of the part throughout its volume (for example, by quenching), as harder parts are also more brittle. Carburizing is the most common case-hardening heat treatment. It ...

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## Case-hardening steel Carbodur - dew-stahl

Carbodur case-hardening steel For how long a component meets the requirements and how reliably it withstands sudden peak loads, depends on the material that the part is made of. In the end, the performance of a small part determines the cost-effectiveness of large equipment or machines. The more meticulously a material is tailored to the functions of the individual components, the better the ...

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## Introduction to Surface Hardening of Steels

390 / Case Hardening of Steels. and rolling contact fatigue. Too high a carbon level can result in excessive carbide formation and carbide networking or massive carbides that may be detrimental to performance. Therefore, it is important to understand the carbon proﬁle needed and deﬁne it when necessary. Case depth of carburized steel is a function of carburizing time, the steel chemistry ...

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## Measuring Case Depth Hardness Engineers Edge

Case hardening may be defined as a process for hardening a ferrous material in such a manner that the surface layer, known as the case, is substantially harder than the remaining material, known as the core. The process embraces carburizing, nitriding, carbonitriding, cyaniding, induction, and fíame hardening. In every instance, chemical composition, mechanical properties, or both are affected by such practice.

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## Case hardening (surface hardening) - tec-science

Single quench hardening is a special case hardening process. It is suitable for steels that tend to form coarse grains during carburizing or for components that still require intermediate machining before hardening. In this process, the steel is cooled slowly after carburizing. For the actual hardening

More

## Steel Surface Hardening (Case Hardening) —

27/02/2021  Another method involves carburizing the entire part, then removing the case in selected areas by machining, prior to quench hardening. Nitriding The steel part is heated to a temperature of 900-1150°F (482 to 621°C) in an atmosphere of ammonia gas and dissociated ammonia for an extended period of time that depends on the case depth desired.

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## Case Hardening Jasco Heat Treating

Case Hardening is a heat treatment process that we use to produce a surface which is resistant to wear. It also maintains the toughness and strength of the core material. It is applied to low carbon steel parts after machining, and can be used for high alloy steel bearings, gears, and other components. Case hardening techniques we employ include: Carburizing This process diffuses nitrogen and ...

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## 10 Key Benefits of Case Hardened Steel -

Subsequent case hardening after machining provides superior wear resistance and hardness on the surface of the precision machined parts. 3. Case Hardened Steel Enhances Performance of Taper Roller Bearings . Case hardening leaves a softer core that is advantageous for accommodating a misalignment condition common in taper roller bearings. A strong surface layer with a soft inner core ensures ...

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## Heat treatments for CNC machined parts 3D Hubs

Before CNC machining: ... Case hardening is a family of heat treatments that result in parts with high hardness on their surface, while the underline materials remain soft. This is often preferred over increasing the hardness of the part throughout its volume (for example, by quenching), as harder parts are also more brittle. Carburizing is the most common case-hardening heat treatment. It ...

More

## Measuring Case Depth Hardness Engineers Edge

Case hardening may be defined as a process for hardening a ferrous material in such a manner that the surface layer, known as the case, is substantially harder than the remaining material, known as the core. The process embraces carburizing, nitriding, carbonitriding, cyaniding, induction, and fíame hardening. In every instance, chemical composition, mechanical properties, or both are ...

More

## Introduction to Surface Hardening of Steels

390 / Case Hardening of Steels. and rolling contact fatigue. Too high a carbon level can result in excessive carbide formation and carbide networking or massive carbides that may be detrimental to performance. Therefore, it is important to understand the carbon proﬁle needed and deﬁne it when necessary. Case depth of carburized steel is a function of carburizing time, the steel chemistry ...

More

## Heat Treat Processes for Gears Gear Solutions

Many gears are neutral hardened, but for the most demanding applications case hardening processes, such as carburizing and nitriding, are the preferred methods due to their improved wear characteristics and mechanical properties. Atmosphere Carburizing. Carburizing, the most widely used form of surface hardening, is the process of diffusing carbon into the surface of low carbon steel at ...

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## Case hardening will destroy your metal lathe -

10/08/2018  Think grinding is bad for a lathe ? Try case hardening damage.Camera: Nikon L820

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## Carburizing 101: Everything You Need to Know

Case hardening is a process which involves adding a hard, protective shell to the outside of an otherwise soft steel. This process allows for intricately shaped metals to possess a strength and toughness that they otherwise wouldn't be able to possess. One of the most sophisticated and common forms of case hardening is carburizing. This is a ...

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## Case-hardening - Wikipedia

Case-hardening or surface hardening is the process of hardening the surface of a metal object while allowing the metal deeper underneath to remain soft, thus forming a thin layer of harder metal (called the "case") at the surface. For iron or steel with low carbon content, which has poor to no hardenability of its own, the case-hardening

More

## Steel Surface Hardening (Case Hardening) —

27/02/2021  Another method involves carburizing the entire part, then removing the case in selected areas by machining, prior to quench hardening. Nitriding The steel part is heated to a temperature of 900-1150°F (482 to 621°C) in an atmosphere of ammonia gas and dissociated ammonia for an extended period of time that depends on the case depth desired.

More

## Case-Hardening Steel - Ovako

Case hardening entails the treatment of a finished component in a carburizing atmosphere at a high temperature, typically 850–950°C, which increases the carbon content at the s

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## Introduction to Surface Hardening of Steels

390 / Case Hardening of Steels. and rolling contact fatigue. Too high a carbon level can result in excessive carbide formation and carbide networking or massive carbides that may be detrimental to performance. Therefore, it is important to understand the carbon proﬁle needed and deﬁne it when necessary. Case depth of carburized steel is a function of carburizing time, the steel chemistry ...

More

## 5 Types of Heat Treating and Their Purpose in

In the process of case hardening, the external layer of metal is hardened while the interior metal remains soft. For metals with a low carbon content such as iron and steel, additional carbon has to be infused into the surface. Case hardening is a process often used as a final step after the piece has already been machined. High heat is used in combination with other elements and chemicals to ...

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## Heat Treat Processes for Gears Gear Solutions

Many gears are neutral hardened, but for the most demanding applications case hardening processes, such as carburizing and nitriding, are the preferred methods due to their improved wear characteristics and mechanical properties. Atmosphere Carburizing. Carburizing, the most widely used form of surface hardening, is the process of diffusing carbon into the surface of low carbon steel at ...

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## Precision Machining and Finishing Complex

Case hardening. Ion and gas nitriding. Various organic coatings. Hot Isostatic Pressing (HIP) to attain full density for demanding applications. Plating Surface Treatment. Indo-MIM manages its own 2,800 m2 modern plating facility. It is fully equipped with the latest automated controls and waste treatment. It is staffed and operated by highly trained engineers and technicians. Among the ...

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## Precision Heat Treat

Case hardening produces a hard, wear-resistant surface layer, or case, on top of a ductile core.. Stress Relieving. Stress relieving is done to remove stresses caused by the many types of manufacturing processes (Machining, bending, turning, milling, welding) Cleaning. Normalizing. Normalizing helps reduce internal stresses caused by forging, casting, machining, forming and welding ...

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## Process After machining before harding or else

Given that case hardening changes the surface hardness and machining removes material at the surface, I'd think you would machine before hardening. Its not unheard of to machine/grind/turn post case hardening - all you need to do is ensure the surface hardness/min case depth is within spec.

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## Case Hardening trouble - Metal and Metallurgy

I have a task which is causing alot of trouble in our case hardening department. A costumer is producing different sizes axels in 20MnCr5. When one certan size axel is treatet they simply dont get any carbon addition in the surface. The other parts in the oven at the same time have perfect result, but this particular axel doesnt. I have tried to measurre hardness to see if there is any ...

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## Measuring Case Depth Hardness Engineers Edge

Case hardening may be defined as a process for hardening a ferrous material in such a manner that the surface layer, known as the case, is substantially harder than the remaining material, known as the core. The process embraces carburizing, nitriding, carbonitriding, cyaniding, induction, and fíame hardening. In every instance, chemical composition, mechanical properties, or both are ...

More

## Heat treatments for CNC machined parts 3D Hubs

Before CNC machining: ... Case hardening is a family of heat treatments that result in parts with high hardness on their surface, while the underline materials remain soft. This is often preferred over increasing the hardness of the part throughout its volume (for example, by quenching), as harder parts are also more brittle. Carburizing is the most common case-hardening heat treatment. It ...

More

## CASE HARDENING STEEL - SumanSteels

Machining components. Case Hardening Steel (SAE-8620) SAE 8620 ROUND BAR: SAE 8620 FORGED BARS: SAE 8620 ROLLED BARS SAE- 8620 STEEL is a low alloy case hardening steel which is supplied to American standards SAE 8620 and AISI 8620. 8620 can be carburized, which will achieve a tough core with a hard wear resistant case. 8620 provides a combination of strength and

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## Case hardening Metallurgy for Dummies

Case hardening is a simple method of hardening steel. It is less complex than hardening and tempering. This techniques is used for steels with a low carbon content. Carbon is added to the outer surface of the steel, to a depth of approximately 0.03mm. One advantage of this method of hardening steel is that the inner core is left untouched and so still processes properties such as flexibility ...

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## Case hardening will destroy your metal lathe -

10/08/2018  Think grinding is bad for a lathe ? Try case hardening damage.Camera: Nikon L820

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## Tech Tip #60 - Work Hardening During Machining

Work hardening of materials is a condition that should be avoided while machining. It is caused when heat generated by the cutting tool transfers to the workpiece material and causes plastic deformation. The process is similar to a heat treatment of the workpiece but on a lower scale.

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## Machine tolerance for case hardening - Practical

02/08/2016  IIRC case-hardening (carburizing, nitriding, etc), on low-carbon steels is limited to about 1mm max in depth, and that's deep. Used to check case-depth on mechanical parts using cross-sectioned, etched parts and a microhardness tester. On these smaller mechanical parts (not huge gears etc), the total case depth (where the hardness has decreased to something like 45RC) was only few

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## Surface Hardening: Hard Turning or Grinding?

The purpose of this paper is to investigate surface hardening and the interpretation of the reported thermal softening. Hard turning and grinding of AISI 52100 steel was conducted using gentle machining conditions. Surface integrity was then analyzed in terms of surface finish, microstructure, and surface and subsurface micro and nanohardness. Hard turning may produce equivalent or better ...

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## Laser hardening TRUMPF

Since the machining process can be controlled precisely, even geometrically complex and delicate components can be hardened. This results in surfaces that can be strongly stressed mechanically and chemically; they produce significant benefits in tool making, the automotive industry and in agricultural technology. What are the benefits of laser hardening? Less reworking Due to the low heat ...

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