Monday, 3 June 2019

SIC RODS



U Shape, Material Grade 1800,D1=3mm, D2=6mm, Le=140mm,Lu=125mm, A=25mm
Specify as: Songshan Super MS18, U Shape, 3/6×140×125×25
Songshan Super MoSi2 heating elements are resistive heating elements based on molybdenum disilicide. The molybdenum disilicide heating elements prevents the inner core from oxidation by forming a compact quartz glass coating at the surface under high temperature. The temperature generated by MoSi2 goes as high as 1700-1830C in an oxidation atmosphere. They can be widely used in such applications as sintering and heat treatment on electronic ceramics, structural ceramics, magnetic materials, flameproof materials, glass, metallurgy, etc. The resistance of the heating elements is independent in their mission time. The MoSi2 heating elements hardly age, which allows the mixed use of new and old packages. After a long time use in lower temperature around 400-700C, the element will get powdered due to intensified oxidation at this temperature range.
The product includes series 1700 grade, 1800 grade. The packaging is available in U shape, W shape, Straight shape (X shape), bend shape (L shape), Round shape, Spiral shape, M shape. The dimension ranges from 3/6,4/9, 5/10, 6/10, 6/12, 6/14, 7/14, 8/16, 9/18 to 12/24mm.

Saturday, 1 June 2019

Silicon Carbide Heater


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Silicon Carbide Heating Elements

The silcarb Silicon carbide heating element is a time trusted heating element. silcarb SiC is characterized by high use temperature, superior oxidation resistance, low corrosion, long service life, low creep, and easy installation features i.e. full accessories. Typical material properties (nominal) are specific gravity: 3.0 - 3.1g/cm3, specific heat: 0.7 * 0.1.4KJ/Kg, emissivity: ~0.80, tensile strength: ~15 * 106 N/m2 and the expansion coefficient is 4.8 * 10-6. The Silcarb silicon carbide heating elements are available in eight different basic configurations that extend heater life, especially in corrosive environments.  For more information, please complete and submit the application form below or contact us at (+91-80-23347004 / 23462904.)or email us with this general inquiry form.

*Note: All SEO Silicon Carbide Heaters are conditioned with the SEO patented and patent applied NoAgeTM treatment, which provides greater stability during use. Why choose silcarb Silicon Carbide?
*Read silcarb Silicon Carbide HeatingElement Testimonials
New Dross Reduction Cascade e-Ion Technology for Aluminum and Silver Alloys.  New Elements.


Friday, 31 May 2019

High Temperature Furnaces

 Bogie hearth furnaces equipped with SiC rod heating can be used in the production of technical ceramics, especially for sintering at working temperatures up to 1550 °C. The WHTC product line with especially robust design can hold heavy charges including kiln furniture. The furnace chamber is equipped with high-quality insulation made of high-temperature fiber blocks. The bogie insulation is structured in multi-layer lightweight refractory bricks on the heating chamber side.


The furnace is heated along both sides by vertically installed SiC heating rods. This heating technology permits processes requiring working temperatures above 1350 °C which cannot be achieved with wire heating elements. The SiC rods are controlled by the thyristor controller which counteract the aging of the heating elements by means of automatic power compensation.

  • Tmax 1550  °C
  • Dual shell housing with rear ventilation provides for low shell temperatures
  • Swing door hinged on the right side
  • Heating from both sides via vertically mounted SiC rods
  • Thyristor controllers with automatic output compensation counteract the aging of SiC rods
  • Multi-layer insulation with high-quality fiber modules on the heating chamber side
  • Bogie for heavy loads lined with lightweight refractory bricks
  • Bogie hand driven on rubber tires
  • Motor-driven exhaust air flap on the furnace roof
  • Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm Controller: Recording of process data with USB-flash drive
Additional equipment
  • Safety concepts
  • Exhaust air and exhaust gas piping
  • Thermal or catalytic exhaust cleaning systems
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation, and control
  •  By Silcarb


Heat Treatment Furnaces

Related image


Continuous Heat Treatment: Strand Line Furnaces



Carbolite Gero can supply units to process a single strand. However, for cost-efficient production furnaces with up to eight lanes are offered as standard and additional lanes can be added (up to a maximum of 22).

The furnace length is determined by the throughput requirement. The strand passes through Inconel or ceramic tubes and, where required, under the appropriate atmosphere and water cooling (for controlled hardening). A burn-off flame on each tube ensures complete combustion of exhaust gases. Long life wire heating elements are wound around ceramic tubes and are located in both furnace halves. Individually controlled zones provide excellent temperature uniformity which is especially important when heating long lengths.

Depending on tube length and customer requirement, Carbolite Gero can supply a variety of tube supports and tube tensioning systems which ensure the work tubes remain straight. A hinged furnace top allows ease of servicing and cleaning. Low thermal mass insulation ensures fast heat up rates and excellent thermal efficiency. Carbolite Gero offers controls for inert and reactive gases such as cracked ammonia and hydrogen.

 


Thursday, 30 May 2019

Tower Melting Furnaces






Entec Industrial Furnaces Pvt. Ltd counted as one of the celebrated Tower Furnace manufacturers, suppliers, and exporters of India. These types of furnaces are suitable for pressure to casting plants, additionally, these are, melting cum holding furnace with elevator charging aluminum ingots and product returns.

We utilize only premium quality raw material and another component which are a must for fabricating these types of furnaces. Because of their robust structure, modern design, long life, low maintenance, high efficiency and productivity, their demand rise in the national as well as international market.

Being leading Tower Melting Furnaces manufacturers, suppliers, and exporters of India, we offer our complete range at a competitive market price. We provide doorstep delivery of your consignment without any delay. We commit that you will never feel guilty over your decision to choose us for your industry needs. Feel free to send inquiries; we are right here to help you.

These industrial Tower Furnace are suitable for pressure die casting plants. hey, getting cum holding furnace with elevator charging aluminum ingots and product returns.

Features Of Tower Furnace



  • High productivity
  • Long operating life
  • Trouble free performance
  • Durability
  • Eco-friendliness

Laboratory / Melting Furnaces



Image result for laboratory furnace 

Melting Furnaces up to 1500 °C

 















Laboratory /Melting Furnaces

These compact melting furnaces for the melting of non-ferrous metals and alloys are one of a kind and have a number of technical advantages. Designed as tabletop models, they can be used for many laboratory applications. The practical counterbalanced hinge with shock absorbers and the spout (not for KC) on the front of the furnace make exact dosing easy when pouring the melt. The melting furnaces are available for furnace chamber temperatures of 1000, 1300, or 1500 °C. This corresponds to melt temperatures of about 80 °C - 110 °C lower.
  • Tmax 1000 °C, 1300 °C, or 1500 °C, with melt temperature about 80 °C - 110 °C lower
  • Crucible sizes of 0,75, 1,5 or 3 liters
  • Crucible with integrated pouring spout of iso-graphite included with delivery
  • Additional spout (not for KC), mounted at the furnace for exact pouring
  • Compact bench-top design, simple emptying of the crucible by the tiltiing system with gas damper
  • Crucible for heating up of melting furnace insulated with a hinged lid, the lid opened when pouring
  • Defined application within the constraints of the operating instructions

Additional equipment

  • Other crucible types available, e.g. steel
  • Design as a bale-out furnace without tilting device, e.g. for lead melting
  • Over-temperature limiter for the furnace chamber with automatic reset to protect against overtemperature. The limit controller switches off the heating when the pre-set limit temperature has been reached and does not switch it on again until the temperature falls below the setting again.
  • Observation hole for melt
  • Silcarb company.


ModelTmaxCrucibleVolumeOuter dimensions4 in mmConnectedElectricalWeight
 °C in lWDHload kWconnection*in kg
K 1/101000A 60.755206806603.01-phase85
K 2/101000A101.505206806603.01-phase90
K 4/101000A253.005707557053.61-phase110
          
K 1/1321300A 60.755206806603.01-phase120
K 2/1321300A101.505206806603.01-phase125
K 4/1321300A253.005707557055.53-phase1170
          
KC 1/1531500A60.7558063058010.53-phase170
KC 2/1531500A101.5058063058010.53-phase170

Wednesday, 29 May 2019

Molybdenum Disilicide


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Download PDF Copy

Request QuoteWritten by AZoMMay 282001

Molybdenum disilicide (MoSi2) is a refractory metal silicide that is primarily used as a heating element. In recent years, its potential for use as a structural ceramic has been recognized, as the material combines excellent oxidation resistance and high elastic modulus at elevated temperatures. 

These applications have been limited as MoSi2 is inherently brittle below 1000 oC, and has poor creep resistance at temperatures above 1200 oC. Consequently, workers have concentrated on improving these properties by combining MoSi2 with the second material in a composite. 

MoSi2 and associated composites are most commonly made by pressure-assisted sintering techniques.  Hot pressing and hot extrusion produce simple shapes and are relatively economical. 

Hot isostatic pressing produces complex shapes, with uniform density and grain structures, but is a more costly process.  

Many other techniques such as reaction sintering, mechanical alloying and self-propagating high-temperature synthesis are being investigated, but have yet to demonstrated reproducibility and commercial viability.

Key Properties

Molybdenum disilicide has gained attention due to its attractive properties:

         Moderate density

         High melting point

         Excellent oxidation resistance

         High modulus at elevated temperatures.

Its use as a structural ceramic is limited by poor characteristics in two key areas:

         Low toughness at temperatures less than 1000 of means that the material is very brittle at room temperature, and only becomes plastic at elevated temperature.

         Poor creep resistance at temperatures above 1200 oC. 

Typical properties of hot-pressed molybdenum disilicide is shown in table 1. 

Table 1. Typical Physical and Mechanical Properties of Molybdenum Disilicide.

Property

Value

Density (g.cm-3)

6.29

Melting Point (°C)

2230

Young’s Modulus (GPa)

430

Bend Strength (MPa)

250

Fracture Toughness K1C (MPa.m0.5)

3

Hardness (GPa)

9

Resistivity (ohm.cm) (at room temp)

3.5 x10-7

Resistivity (ohm.cm) (at 1700 °C)

4.0 x10-6

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Applications

Molybdenum disilicide is most commonly used commercially in electric heating elements.  The material has the potential to be used in high-temperature structural components.

Heating Elements

Molybdenum disilicide is a conductive silicide which resists oxidation through the formation of stable layers of silica on its surfaces at high temperatures.

MoSi2 has been developed as an electric heating element for use in the air at temperatures above 1600 oC (figure 1). Much commercial MoSi2 heating elements known are in fact cermets, comprising a mixture of MoSi2 particles bonded together with an aluminosilicate glass phase, typically as 20% of the total volume.

A Split tube furnace (max. operating temperature 1800 °C) equipped with MoSi2 heating elements


Figure 1. A Split tube furnace (max. operating temperature 1800 °C) equipped with MoSi2heating elements (Photo Courtesy of Radatherm Pty Ltd)

The best grade of MoSi2 elements are capable of operating up to 1800 oC but the material is extremely brittle and can suffer badly from creep in use.  However, they offer process advantages as they can operate at high electrical loads without aging and do not show increasing electrical resistivity with use.  They are resistant to oxidation in air, oxygen, and oxygen-rich atmospheres.  They can also be used with nitrogen, noble gases, hydrogen, ammonia and limited vacuum, however operating temperatures and campaign life may be reduced due to a breakdown of the protective oxide layer.

MoSi2 elements are supplied as ready-made elements, and are produced as either straight or bent forms and in a wide range of dimensions. The elements are used mainly in laboratory furnaces and production furnaces in the glass, electronics, steel, ceramics and heat treatment industries.

High Temperature Structural Components

The attractive combination of oxidation resistance and high-temperature elasticity makes molybdenum disilicide a most promising candidate for use in high-temperature applications such as gas turbine engines.   Many investigators have worked to improve low-temperature ductility and high-temperature creep resistance.  However, they have yet to produce a commercially viable composite combining all the desired properties.

                         Primary author: Ceram Research

 


Sunday, 26 May 2019

INDUSTRIAL HEATING ELEMENTS

Industrial Heating Elements Come With Service


Put customer service concerns to rest when doing business with Wattco. This site provides a whole lot of information about our quality industrial heating elements but read between the lines: Our real business is customer service. A few of us still care about “intangibles” like giving customers a positive experience. From the small business owner looking to order a single mechanical thermostat, right up to the plant operator with a 100 cartridge heaters on order, every customer receives top priority and expedient service.
Our philosophy is to give not only the most fastidiously manufactured industrial electric heater equipment and supplies available but also to provide those products with a steadfast commitment to customer satisfaction.

Industrial electric heater satisfaction guaranteed

So, how does WATTCO™ provide both a high level of customer service along with top-notch industrial heating elements? We can tell you it’s not by spewing out facts and figures or giving a slick sales pitch. Our line of products, expertly designed by top engineers, speaks for itself. Nor is it by stuffing a brochure in the mail instead of answering specific inquiries.
We excel in our service to our customers by listening closely to what they have to say. Answering any and all questions and concerns. Being eager to personalize/customize any order and fulfilling that order more quickly than any of our competitors. No commercial or industrial electric heater – no matter how “rock-bottom” the price – is worth the money spent if the vendor hasn’t fully addressed all the relevant concerns.
WATTCO™ is a premier provider for industrial and commercial heating products, from elements to full constructions. Engineers and project managers the nation over have come to us for our expertise and customized attention. Contact us today to learn more about our products and services.
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Friday, 24 May 2019

IIT Students Projects





The Ericsson Innovation Awards were instituted last year in order to promote and recognize the spirit of innovation within the IIT system. A total of 67 projects were submitted by IIT students and these ten were given financial support by Ericsson to complete the initial prototype within two months.
1. A Mask which uses Facial Speech Gesture Sensors to Help the Mutebluetooth glasses
Wireless Bluetooth Glasses
You could soon be looking at a stylish, facial accessory (something along the lines of a Bluetooth headset/sunglasses combo), which can recognize inaudible, speech gestures to input text into an Android device.
Not only would this be a boon for the mute, but even for regular people on the go who need to type text into documents or emails without using their hands or speaking out loud – while traveling on the Metro for example.
Conventional speech recognition applications use audio or image processing, often slow and not very user-friendly technology. Placing analog sensors would eliminate current limitations and targeting special muscles, also be made into a predictive application.
This team of 4 from IIT Kanpur; Badal Choudhary, Danny Boby, Sourya Basu and Vaibhaw Kumar are thinking out of the box and developing a product which uses electromyography (or EMG, basically, a process of evaluating and recording the electrical activity produced by skeletal muscles).
While it is currently used primarily as a medical technique, these boys are bringing this technology to the masses and applying it in daily routine activities.
2. A Smart Paper Calendar Device which even the Blind Can Use
Forget about hanging up all those tacky old paper calendars and wall-hanging clocks which some bank or other sundry corporate handed out for free publicity in your home.
Now there’s a stylish new home accessory which:
·         Takes up less space in your home/office
·         Consumes less power through a paper-based display
·         Organizes your daily and monthly calendar
·         Records and schedules alarms or events
·         Connects wirelessly to a digital calendar (Google Calendar, for ex.) through Wi-fi or Bluetooth
·         Can recognize voice commands (such as change the date, schedule the event, inquire about the day on a specific day, and set alarms)
·         Has Braille engravings; so is entirely user-friendly for the visually impaired
Nishant Bugalia, an MSR student from IIT Delhi with more than 9 years of experience in the software and embedded industry has conceived and developed to production this extremely useful, innovative device which has both real life application for regular people and has a humanitarian purpose behind it as well.
3. Intelligent Earphone Isolates different Sources of Sound
Imagine you’re at a large gathering, a party or conference for example, where there are many different people having different conversations, background music, maybe even something disruptive like the sound of some construction happening nearby.
How would you like to be able to pinpoint each conversation and decide which one to listen in on, or if it’s getting too much just block out all sounds and just listen to the music, even fade out the distractive background noise?
Well, it’s almost here. A wireless earphone which connects to your Android devise and allows you to do just that.
It uses Audio Signal Processing technology and an intelligent earpiece containing multiple microphones to identify different sources of sound and attenuate and concentrate on any chosen one.
Team members Parth Gaggar, Vijay Jain and Rishabh Bhatnagar from IIT Roorkee has gone beyond conventional Noise-Reduction technology and thought about what people actually want to listen to, not what they don’t.
They are working on developing the actual earpiece, but already have the GUI ready for installation into smartphones.
4. The ‘iDitya’ Smart DIY Solar Panel Optimises Power Utilisation
So you want to go green? Or maybe just save some money and run your water heating and other appliances on solar power. Well, there are literally hundreds of options out there for you now
How is this one any better?
Firstly, it’s completely Do-It-Yourself, requires no labor or installation charges. Secondly, it’s relatively cheap, can be bought off-the-shelf and lastly, it only requires 3 pieces of hardware, one of which you already own.
The ‘initial Solar Assistant’ is an HMI (Human—Machine Interface) based solar power supply system which provides an end-to-end solution to the consumer, i.e. it can be bought, installed and maintained by anyone in a home/commercial environment.
Using the location sensor, the ‘iDitya’ system judges the optimum angles for the panel at any given time of year and they can be adjusted accordingly.
The whole system comprises of a DIY adjustable solar panel structure, an electrical sub-system and a GUI operating on Google’s Android platform.
IIT Delhi team representatives Praneet Aggarwal, Navneet Saini and Anshuman Kumar under the guidance of Prof. P.V.M. Rao has developed the ‘Aditya Solar Assistant’, an innovative, easily applicable and cost-effective solution for the average homeowner or commercial establishment which Greens Up as you Power Up!

5. Advanced Breathalyzer Helmet for Safer Riding
So the cops have gotten strict enough about it, and you know you should be wearing the helmet while riding your motorcycle/2-wheeler… but let’s face it, it’s still largely perfunctory. Even when wearing the helmet, most people don’t strap it on properly, and yes, they still drive drunk! (The numbers with the Traffic Police stack up as proof.)
So, how about a helmet which:
·         Ensures that it’s strapped on properly with an adequate pressure gradient?
·         Monitors the CO2 levels inside the helmet?
·         Analyses the alcohol level in the wearer’s breath and activates/deactivates the bike accordingly?
Well, that last one might seem like too much of a “Daddy’ Call”, but with drunken driving on 2-wheelers being the #1 cause of head injuries in road accidents, it’s probably a better idea to let someone/something else decide whether you should be riding or not.
Accordingly, Rishabh Bailey, Naman Singhal and Shabham Jaiswal from IIT BHU, Varanasi is developing a helmet which comprises of; a pneumatic sensor to ensure that it’s strapped on properly, a CO2 and alcohol sensor, and a Bluetooth module consisting of an emitter and receiver to activate/deactivate the vehicle.
How’s that for innovative and personal safety-related thinking?
6. SAFER – Guardian Device for Women
Designed to look like a pendant (or a bracelet), Safer is a stand alone security device capable of transmitting over various forms of communication systems (such as the Internet, SMS, Near Field Communication) to alert friends and immediate family in a distress situation.

It uses multiple cell phone towers to transmit data and triangulate the user’s position. In an emergency, the control room dispatches a distress signal to the user’s contact list, the Police, and the RAT (Rapid Action Team)
With no other local competitors yet, SAFER is the only such application available in the Indian market today. Paras Batra, a 4th year Civil Engineering student at IIT Delhi has conceptualized, designed, produced and brought-to-market this extraordinary personal safety innovation.
7. 3D User Interface for Cellphones which Doesn’t use Stereoscopy
Does your phone have a front camera? If yes, then you’re on your way into entering the (as-yet mostly restricted to R&D) realm of 3D imaging.
Conventional 3D imaging technology involves stereoscopy (or, to put it simply, requires multiple camera angles).
The unique feature of this innovation is that it needs just 1 the front-facing camera on a device which is pretty standard on most smartphones today.
Used either as an HMI (Human-Machine Interface) or as a tool for presenting an object in a 3-dimensional perspective, this project has application across the board.  eg. e-commerce, where a company like Flipkart or Amazon might want to present a 3D image of their product.
The 3-member team from IIT Kanpur, Lavisha Aggarwal, Mayank Pathak and Pranav Kumar, have developed this one-of-a-kind innovation and stand a good a chance at being the next big name in 3D Imagery.
You wouldn’t think much about email accounts or MacBooks in the African Bush or rural India, but that’s exactly where companies like Google and Apple are investing heavily in the form of laptops and tablets to impart technology-aided education in the past few years.
Educators aren’t technologists, Computer experts aren’t teachers, and neither are design-oriented.
Coupling the 3 specialties of Educators, Technologists and the creative focus of professional Designers is how this innovative new platform aims to produce an EDA (Education Data Analytics) tool.
It involves Cloud Computing, Data Analysis, Visualisation and Web-design, Data Mining, and Open Source computing.
While there are competitors in the field such as Palantir, Addepar and Mixpanel with multi-million dollar backing from Silicon Valley out there, what makes this project unique is that it is the only Open Sourced application in the tech-aided Education sector.
Peeyush Agarwal of IIT Kanpur knows what he’s talking about, having built an open source software as a Google Summer of Code project based on similar lines when he says, “the main challenge is to design a platform that is intuitive and can handle large amounts of data”.
9. Trafford – Traffic Analysis Software based on Social Network Data
Let’s face it; you’re on Facebook, and probably Twitter, Instagram, LinkedIn and a few other social media platforms out there.
Why not get useful, traffic-related reports while on the go instead of getting  stuck in the glut of ‘Who’s getting What’ notifications you’re flooded with every day.
Real-time updated traffic reports at your fingertips which contain; date, time, location and cause of traffic jams. No more tuning into local FM reports at predetermined timings.
Javesh Garg, Arihant Kumar Jain and Prashant Jalan of IIT Kanpur have set out to enhance the commuter experience and provide government agencies with relevant insight into problems faced by the average person on the go.
Screen Shot – Route Options
They have developed a prototype application which provides real-time traffic updates and information on traffic management trends using streaming data from social media sites. After cleaning through the white noise, they feature each relevant post as a vector.
Besides traffic updates, the application provides info on traffic trends, maps based on high, medium or low-risk traffic levels and a Safest Route Finder function
According to recent statistics, the required nurse-to-patient ratio is alarmingly lower than it needs to be. Slightly strange, wouldn’t you say, considering the percentage of our population who choose to go into the healthcare profession?
Well, the unfortunate fact is that, the majority of Medical doctors, nurses, technician, and diagnosticians who study in India aspire to practice abroad, where the administrative flow and financial returns are much better then in India at present.
Been to a local hospital ward recently? If so, how well do you think they’d take to a change in standard operating practices?
Not very well, I can tell you from practical experience.
What is needed is a smarter, more intuitive patient monitoring system that makes life easier, not more complicated, for hospital staff. That’s where Smart Ward, developed by Suryakant Thoraskar, Vineesh VS and Anjaly TR from IIT Mumbai have stepped in to provide a simple, Android-based platform which steps in only when needed to inform nurses and doctors of an important change in a patient’s vitals