Duratomic technology - breakthrough in tool performance

Sometimes the appearance of a technology or process is accompanied by a significant increase in the performance potential of a material. The Duratomic technology from Seco Tools is a classic example. Songa's Don Graham and Roger Granström explain the scientific principles behind success.

There are many ways to improve the performance of coated products: fine-tuning the chemical composition in the coating furnace, more careful structural control of the coatings, fine grinding of the top and bottom of the coated blades, and even the cutting edge after coating Polishing, all of which is good for the end user.

In addition to these improvements over the past few years, Seco has attempted to adopt a relatively more basic approach to improve coating performance. For example, the industry is one of the reasons for the polishing of some material grades in a more basic way, and this is one of the measures used by Seco to remove the flaws in the coating itself. Polishing can improve smoothness, residual stress state and reduce cutting friction. But what happens when these flaws are not the first factor? This problem has led Seco to work to improve the structural integrity of the various coatings.

If we start from the original place, there are two different forms of alumina applied to the coating: kappa and alpha. The difference between the two lies in the difference in crystal structure. For example, ceramic sinks and rubies are made of alumina. The difference between the two is in the way the atoms are arranged.

Turning product expert Don Graham explains: “When used as a tool material, we prefer to use alpha phase alumina. However, the kappa phase is easier to deposit, so we first deposit the kappa phase and then heat treat the coating in the furnace. It is converted to the alpha phase. In this process, volume shrinkage occurs, and the direct consequence is that cracks are inevitably generated. Until Seco's coating experts solved how to directly deposit alpha phase alumina, the structure is free of cracks. ”

The analogy of diamonds "we can use another analogy. We all know that diamond is the hardest material known to man, and can be opened relatively easily from a certain crystal direction," continues Don Graham. "Diamond can resist very well." Any form of breakage or wear. By carefully adjusting the coating cycle, Seco's R&D team already knows how to control the crystal structure of these coatings to improve toughness and wear resistance. This is the 'Duratomic' process we have named. I hope it reflects our idea of ​​controlling the coating to make it more durable through atomic processes. By introducing another direction of crystallization into the cut, we increase the toughness and wear resistance of the product.” Product Manager Roger Granström added Road: “The Seco research and development team is doing a chemical change in the crystal structure of the alumina (Al2O3) layer to create a coating that provides longer tool life and improved cutting capabilities. We believe this will be complete. Change the performance expectations of future material grade developments. Development of coatings with Duratomic technology can be used with any different matrix Together, create a new generation of applications have peak performance and a wide range of material grades. "

The hardness of the conventional alumina coating is about 27.5 GPa. Duratomic's hardness is about 30.5GPa, an increase of 10% to 15%. The increase in hardness translates directly into an increase in wear resistance and, therefore, tool life. In a typical application, the coating's operating temperature is also reduced from 915 degrees Celsius to 880 degrees Celsius, which is sufficient to greatly improve the resistance to crater wear.

The material grade is caused by an adhesive that bonds alumina to the underlying titanium carbonitride layer. Ti(C,N) is very hard and wear resistant. Below it is a brand new matrix that is considered to be an ideal partner for this coating and also features a cobalt-rich zone, which means that cobalt is transferred from the core of this structure to the surface.

There is no doubt that Seco has increased the resilience of this material. A thick 4.25" diameter tube is drilled with a number of 4" deep, 1/4" diameter holes along its length, and then the end face is pierced through the hole system to produce severe interrupted cutting. The cutting condition is: 52100 steel , 650 sfpm (surface feet per minute), 0.016 ipr (inch per revolution), 0.04" depth of cut, and the use of coolant.

Excellent results

Tool life is achieved by observing and counting the number of strokes that are machined before the significant wear of the cutting edge occurs. Seco tested a range of competing P25 grades, including the TP200 and the first grade TP2500 featuring a Duratomic coating. The competitive P25 grade completed nearly 70 pieces before significant wear on the cutting edge occurred. The TP200 (remember this is an excellent material grade) completed 90 pieces before the cutting edge was significantly worn. Unforgettable, the TP2500 completed 130 pieces before the cutting edge was significantly worn.

The TP2500 offers unprecedented levels of wear resistance and toughness, exceeding the task in ISO P applications and being more durable than other material grades. The TP2500 also optimizes the use of stainless steel turning and cast iron for efficient processing of M20 and K30 applications. Don Graham said: "Overall, the TP2500 coating demonstrates increased toughness, excellent heat and wear resistance, and reduced built-up edge. Field trials have shown that the TP2500 increases productivity by 100%. Increased tool life by 400%."

The TP2500 is not only another brand new turning material, but also indicates that the next generation of carbide inserts made with Duratomic technology will make a significant contribution to the development of metal cutting performance, and it will surpass all existing products on the market. ability.

High Speed Door Accessories

About high speed Door Accessories:

1.Driving system: High Speed Door Servo System motor and control, motor SNMA / SEJ +reducer+flang+encoder+control box

2.Other accessories: Middle aluminium bar, bottom aluminium bar, aluminium vertical track, stainless steel vertical track, brushes,round nylon strip, PVC roll, rolling steel tube complete, drum be;;s for rolling tube, side end covers, stainless steel cover, steel tubes, air bag sensor system, safety light beam, Microwave sensor 24 Gigahertz,PVC welding machine, smoke and fire sensors, PVC transparent window, magnetic loop, photocell, remote control, manual push button, sound warning alarm Led lamp traffic light

For some main accessories, here is detain introduction:

1).24G radar sensor:

Brand: Hofic

Technology: Microwave processor

Maintain time: 0.5s

Protection: IP54

Transmitting frequency: 24.125GHz

Maximum installation height: <5meter

Transmitting power density: <5mw/cm2

Power consumption: <1W(VA)

Installation angle: 0-90°(lengthways) -30-30°(crosswise)

Supply voltage: AC&DC 12V-30V

2).Photocell:

Approval CE & ISO9001

Power supply AC/DC 12-30V

Static current 25A

Action current 40mA

Mounting distance Max 10m

NO or NC contact Done by NO./NC. contact selection

Working environment temperature -42℃ to +45℃

Working environment humidity 10 to 90%RH

Appearance dimensions( controller) 123*50*32mm(L*W*H)

Appearance dimensions(Magic eye head) 19*13mm(L*D)

3). Remote control

Operating Voltage: AC220V/50HZ+-20%

Transmit power:≤100mW;Super regenerative module, strong anti-interference

Operating temperature:-30℃-+70℃

Working frequency: 433MHZ;transmitter 1527, millions of encoding chip

Accept sensitivity:≤110dB

Manipulation method: electric remote control

Configure the quantity: Wireless number; factory configuration transmitter two. Can be equipped with PT2272 digital decoder chip

Configure the function: Up, down, stop, anti-lock full-featured reproduction

4). Magnetic loop

Voltage: 12V AC/DC +-10% 24V 115V AC+-10% 230V

Power: <2VA

Continued electrical output: 7A / 250V AC

Frequency range: 20 to 200K Hz

Response time: infinity (factory setting) or adjust maintain time

Sensitivity: 0.01% to 0.1% divided into 3 levels

Protection level: IP30

Electromagnetic compatibility (EMC) Complies with EM50081-1 and EN50082-2

Detection loop inductance: the limit of 40uH to 100uH ideal value 80uH to 300uH

Operating temperature: -25 ℃ to 70 ℃

Storage temperature: -40 ℃ to 85 ℃

Relative humidity: <90% non-condensing

Temperature compensation: automatic compensation up to 50 ℃ / h

Connection type: 11 pin DIN rail socket

Dimensions: 41 * 78 * 85 mm (width * height * length)

Weight: 250 grams

5). manual push button

This exit switch button is made of ABS and has built-in indicator light make it looks more elegant and fashionbale. It can be widely used in public entrance gates, public door, home, office, hotel, etc.

Door Exit Button Push To Exit Switch Door Opener For Access Control Security

Main Feature

Fashionable appearance

Made of ABS Plastic

Easy to install and operate

Used for access control

Specification

Mechanical Life: 500,000 test

Material: Plastic

6). Limit switch encoder

Voltage: DC5V-24V

Output voltage: high voltage≥85%Vcc, low voltage≤0.5V

Maximum mechanical speed:6000rpm

Anti-vibration: 50m/s,10-200HZ,XYZeach way 2 times.

Current consumption:≤30mA

Response frequency: 0-100KHZ

Protection: waterproof,oil proof,dust prevention, IP54

The output code system: binary code

Operating life: MTBF≥30000(+25℃,2000rpm)

Rotational inertia:4.0x10-8kgm²

Maximum load:radial direction20N

Axial direction:10N

Weight: about 0.4kg

High Speed Door Accessories,High Speed Door,Electronic High Speed Door Accessories

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffreezerdoor.com