Linear PTC Thermistor (LPTC) resistance increases with the temperature rises in linearity, displays a virtually linear positive temperature coefficient over their entire temperature range, suitable in measurement and control system, temperature compensation. As the construction material is mainly semiconductor monocrystalline silicon, also called silicon temperature sensor, silicon thermistor, sometimes referred to as silistors. As the temperature coefficient is positive, the silicon temperature sensors exhibit fail-safe operation when a system overheats. Furthermore silicon is inherently stable, so silicon temperature sensor are extremely reliable and have very long operational lifetimes. Hermetically sealed glass package, axial leaded, 2 leads, can operate in high temperature and moisture environment. Linear PTC thermistor in small dimension, tightness, convenient for automatic installation.
AMWEI Linear PTC Thermistor (LPTC) Features:
1. Silicon temperature sensors have a TK (temperature coefficinet) which is nearly constant over the complete temperature range. Temperature coefficient a25/50>=0.7%/C.
2. Excellent long term stability, annual diversification rate <=0.01C/per year, temperature drifts during the lifetime of silicon temperature sensor are negligible.
3. Thermal Time Constant: 10 seconds max in still air.
4. Operating temperature range -50C--+150C.
5. Dissipation factor 2.5--5mW/C.
6. Maximum operating current Iopr=1.0mA.
7. Rated power 10mW.
8. Resistance at 25C optional 600 ohm, 1000 ohm, 1600 ohm, 2000 ohm.
For AMWEI AM-LPTC600, AM-LPTC1000 part can be matched with Philips silicon temperature sensors part KTY84, KTY81.
Silicon temperature sensor Application:
1. Industrial automation control equipment.
2. Home appliance temperature detection and compensation.
3.Precision circuit and crystal oscillator temperature compensation.
4.Temperature compensation of silicon semi conducting devices.
5.Temperature compensation of instrumentation amplifier.
6.A/D converter temperature compensation. íñ Micro motor timing control.
7.Automobile temperature detection and control.
8.Medical equipment temperature detection and control.
9.Linear PTC thermistor applications also include transmission, engine oil and coolant, heating system, overheating protection, amplifiers, power supplies, transducers, telemetry, computers, magnetic amplifiers, thermometry, meteorology, temperature regulation and over-temperature protection.
Ferro silicon Specs: Si:75%min. and Si:72%min. C:0.2%max. S:0.02%max. P:0.04%max. Al:2.0%max.1.5%max.and 1.0%max .Commodity: Ferro Silicon Low Al Specs: Si:75%min. C:0.2%max. S:0.02%max. P:0.04%max.Al:0.1%max.0.3%max.and0.5%max. In 1mt plastic woven bags.
Ferro Silicon Ferro Silicon has a melting point of 1200�¯�¿�½?�?�°C to 1250�¯�¿�½?�?�°C with a boiling point of 2355�¯�¿�½?�?�°C and Ferro Silicon contains about 2% of calcium and alluminium. Ferro Silicon, as an additive to the production process of ferrous metals, will impart several desirable properties upon the resultant alloy. Some of the primary benefits of adding Ferro Silicon to an alloy is to improve the corrosion resistant properties of the new compound, as well as to add to the high temperature heat- resistance properties of the new alloy, for example, in the production of silicon steel for use in transformer cores.
Temperature Protection PTC Thermistor Description
PTC (positive temperature coefficient )thermistor switches at one particular temperature. Making use of the characteristics that the resistance of PTC thermistor increases sharply above curie temperature, when ambient temperature increases abnormally, protective circuit installed PTC thermistor will turn on or cut off loop through resistance changing, achieving thermal protection purpose. PTC thermistor protect such equipment and components as motors, transformers, power transistors and thyristors against over-temperature. A PTC thermistor is less expensive than a thermostat, and its switch temperature can be more accurately specified. It is also smaller and easier to design-in to electronic circuitry. Therefore PTC thermistor can be ideal devices for temperature detection, monitoring, indicating, limiting and over (excessive) temperature protection.
Typical Application of PTC Thermistor for Temperature Protection and temperature limiting sensors
Limit temperature measurement of Industrial electronics application.
Power supplies, switch power supply.
Home appliances, such as dish washers, washing machines, ironing machines, electric cookers, etc.
Electronic data processing and communications engineering (DC/DC converters).
Motor windings overheating Protection.
Automotive electronics.
Semiconductor heatsinks, enclosure panels, temperature-limited transistors.
Lighting applications.
Features of PTC Thermistor for Temperature Protection and temperature limiting sensors
2 Outlook construction: A-radial leaded epoxy resin coated form, B-metal tag lug form.
PTC Thermistor Protection temperature: 60-130C
Quick response.
Long stability.
Small dimension, convenient for installation.
Do not need to be reset after protection.
Bauxite is a soft, whitish to reddish-brown rock consisting mainly of alumina-bearing hydroxides, oxides of iron, silicon and titanium with impurities of Ca, Mg, Cr, V, P, Ga and other elements. Raw Bauxite is a major source of aluminium. Basic alumina containing minerals of Bauxites are gibbsite Al(OH)3, Boehmite g-AlO(OH) and Diaspore a-AlO(OH). We are a major Raw Bauxite Exporter based in Maharashtra (India) and catering to the diverse demands of several middle and eastern Asian countries.
About Raw Bauxite:
The processing of Raw Bauxite is done at a number of alumina refineries in the world. Bauxite can be processed at a low-temperature autoclave digestion (145 oC to 155 oC). Raw Bauxite can be used also for sweetening stage and for non-autoclave digestion in agitators (105 oC).
About 85% of bauxite mined worldwide is used to produce alumina for refining into Aluminium metal and the balance 15% is processed and value added to make its way to other uses like refractory, chemical, cement, abrasives, etc. Aluminium is possibly the most versatile product with applications in almost every industry. Since Bauxite is the primary source for Aluminium there will always be an ongoing promising demand for the same.
Application & Uses of Bauxite:
Raw Bauxite is successfully used for metallurgical grade alumina production besides applications in the cement industry, alumina chemical, steel, alum, energy industries, flame-retardants, etc. Bauxite is used in :
- Aluminium
- Cement
- Chemical
- Blast Furnaces
- Iron/Steel Ladles, etc.
Advantages of Artha Bauxite:
Artha Mineral Resources has good sources for Gibbsitic Bauxite which requires low digestion temperature (145 oC -155 oC) making it more economical to process. Mines are also in close proximity to all-weather ports which makes it very convenient and cost effective to ship this material.
POM Regrind from zipper Teeth, industry lump, industry runner
Definition of POM resin (polyformaldehyde resin): polyformaldehyde is a linear polymer without side chain, high density and high crystalline properties. According to different chemical structures in the molecular chain, there are two types of homoformaldehyde and copolymers. of both types of polyformaldehyde density, high crystallinity, melting point, but thermal stability, the treatment temperature range is narrow (about 10oC), slightly lower in acid and alkali stability; The density of formaldehyde, melting point, strength and copolymer is lower, but good thermal stability, not easy to decompose, wide range of treatment temperature (about 50oC), acid and alkali stability are good . Plastic has excellent all-round performance. Good physical, mechanical and chemical properties, especially with excellent friction resistance. It is commonly referred to as steel or strip, which is the general engineering plastic third. Suitable for reducing wear on parts, transmitters, chemicals, tools and other parts.
One of the synthetic resins, also known as polyformaldehyde resin, POM resin and steel, etc. This is a kind of white or black plastic resin with high hardness, high steel and high wear resistance. Used for gears, bearings, auto parts, machine tools, tools, etc.
MATERIAL: POM Regrind from zipper Teeth , industry lump, industry runner
CATEGORY: POM
TYPE: Regrind
SPECIFICATION: from zipper Teeth , industry lump, industry runner,Qty per month 52 mt
Origin: Bangladesh
LOADING WEIGHT: 24 Ton
FOB (USD/Ton): 650$ - 850$
Packaging: Jumbo Bag
Est. Shipping Time: 15, 30, 45 days
3956 Linear Silicon Ptc Thermistors Temperature Suppliers
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corrugated silicone tube is widely used in medical industry, it is able to withstand high temperature like autoclave sterilization. silicone is a good material to pass the medical test like bio-compatibility test.
PTC thermistors current protector, also called PTC thermistor resettable fuses, protect load against over-current, overload, short circuit. No need for replacement, resume protective function after a short cooling-down time.
Ceramic PTC (positive temperature coefficient) thermistors are used instead of conventional fuses to protect load, such as motors, transformers, or electronic circuit, against overcurrent for circuit protection. PTC thermistor protector not only respond to inadmissibly high currents but also if a preset temperature limit is exceeded. PTC thermistor over-current protector limits the power dissipation of the whole circuit by increasing their resistance and thus reducing the current to a harmless residual value. In contrast to conventional fuses, PTC thermistor resettable fuses do not have to be replaced after elimination of the fault but resume their protective function immediately after a short cooling-down time.
PTC Thermistor Over-current Protector Application
It applies in the over-current overload and short circuit protection of transformers, battery charger, switches, switch power supply, adaptor, meter, instrumentation, apparatus, electronic coils, control panels, air conditioner, automotive electron, etc.
Operating Principle of PTC Thermistor for Overload Over-current Protection
The operating principle is as indicated in the following. When a circuit is in the normal status, the current through PTC is lower than the rated current and PTC thermistor protector is in the normal state with small resistance value, which will not affect the normal operation of the protected circuit. In case of some fault in the circuit and the current is greater than the rated current, the PTC thermistor protector will become hot quickly and present a high resistance state, which sets the circuit relatively "off" to protect the circuit from damage. After the fault is removed, PTC thermistor protector will automatically restore its low resistance state and the circuit will resume normal operation.
Normally, when PTC thermistor is used as an overcurrent protection component, it is preferred to select maximum operating current, maximum operating voltage and proper specifications. Furthermore such factors should be taken into consideration as the dimensions of the components, rated zero-power resistance, operating temperature range, etc.
Ptc thermistors are used to monitor temperature in machines and installations. The design ensures short response times and easy installation.
The product sells point
Ptc thermistors acc. To din 44081(triple sensors acc. To din 44082) are used to protect electrical machines against thermal overload. Thermistors have an even steeper r/t characteristic as that defined in the din standard. The temperature range is from 60 to 180. Ptc thermistors beads with different rated response temperatures can be connected in series. This permits an optimal and economic thermal protection of machines and windings with different limit tempratures.
Key specifications/special features
Single triple
Max.Operating voltage 30 30 v
Rated response temperature tk60-18 c
Tolerance of tk ía5 ía5 k
Resproducibility of tk ía0.5 ía0.5 k
Resistance r25 ín100 ín300 ª+
Resistance at a temperature of tk-5k ín550 ín1650 ª+
Resistance at a temperature of tk +5k í²1330 í²3990 ª+
Resistance at a temperature of tk +15k í²4 í²12 kª+
Thermal response time td ín5 ín5 s
Insulation test voltage v ac2.5 ac2.5 kv
Max.Operating temprature 200 200 c
Max.Storage temperature 160 160 c
Min.Srorage temperature -25 -25 c
Weight 2 3.5 g
Appearance
White or Light Yellow Emulsion
pH
6.5-8.5
Emulsion Lonic
Weak Anionic
Appropriate Thinner
10-30 â?? Water Thickening
Standard
GB/T 26527-2011
Organic Silicon Defoamer
1. The defoamer is composed of polysiloxane, modified polysiloxane, silicone resin, white carbon black, dispersing agent and stabilizer, etc.
2. At low concentrations, it can maintain good elimination bubble suppression effect.
3. Foam suppression performance is prominent
4. Easily dispersed in water
5. The compatibility of low and foaming medium
6. To prevent the growth of microorganisms
Advantage
It is composed of dispersant and stabilizer, low dosage, good acid and alkali resistance, stable chemical properties, easy to disperse in water, effectively prevent bacterial growth. The properties are stable during storage.
Application
1. Papermaking chemical pulping high temperature vacuum or pressure in the defoaming in pulp washing machine
2. When the alkali refining agent of textile industry, inhibit elimination of treatment before
3. Circuit board cleaning
4. Oil mud defoaming in the process of mining
5. Textile printing and dyeing processing
6. Agricultural chemicals
Telecom PTC Thermistor Description
This series of ceramic PTC (positive temperature coefficient ) thermistors help provide protection against power cross, power induction surges and lighting surge defined in ITU, Telcordia, UL. Available in chip, radial-leaded coated and non-coated, SMD, twin vertical surface mount configuration. PTC thermistor overcurrent protector provides reversible, self-resetting protection against over-currents of telecommunication line protector units, improve the reliability of custom premises and network equipment.
Ceramic PTC thermistors can be found providing re-settable line protection at the exchange, monitoring hot spots and protecting ringers, battery feeds, transformers and relay circuits. Also used extensively to protect the mobile phone's battery pack against overcharging in land-based and radio mobile communications.
Advanced developments in telecom equipment in recent years have radically altered the protection requirements of both exchange and subscriber equipment. The PTC thermistor must protect the telephone line circuit against overcurrent, which may be caused by the following examples:
Surges due to lighting strikes on or near to the line plant.
Short-term induction of alternating voltage from adjactent power lines or railway systems, usually caused when these lines or systems develop faults
Direct contact between telephone lines and power lines.
To provide good protection under such conditions, a PTC thermistor is connected in series with each line, usually as secondary protection; However, even with primary line protection (usually a gas discharge tube), the PTC thermistor must fulfill severe requirements.
Surge pulses of upto 2KV can occur and in order to withstand short term power induction, the PTC thermistor must withstand high voltages. If the line has primary protection, a 220V to 300V PTC thermistor is adequate. Without primary protection, 600V PTC device is necessary. We can manufacture a series of PTC thermistor fulfilling both requirements.
Typical Application of PTC Thermistor in Telecommunication Protection
Central Office Switching Equipment (C.O), analog and digital line cards, T1/E1 equipment, xDSL modems and splitters, multiplexers, CSU/DSU, servers.
Primary Protection Modules, MDF (main distribution frame) modules, network interface devices (NIC).
Custom Premises Equipment, also known as subscriber terminal equipment (T.E.), IT equipment: Modem, phone sets, fax machines, phone wall outlet (plugs), alarm systems, answering machine, PBX systems, ADSL Splitters, internet appliance, POS terminals.
Access Network hardware, LAN WAN equipment, Powered Ethernet systems, VoIP (voice over IP equipment), Set-top box (S.B), etc.
Telecom PTC Thermistor Features
Compliant with ITU-T K20 K21 K45
Basic level lightning surges (10/700ª¦s)
Basic level power Induction (600V,1A,0.2S)
Power contact criteria A/B (230V,15min.)
Suitable for continuous connection to main voltage 110/230 VAC in tripped (high ohmic) condition.
Brief introduction:
Ptc thermistor for time delay of lighting&ballast, which are applicable to various types of fluorescent lamp, electronic ballast, electronic energy-saving lamp and digital multi-meters.It can change hard stard of the ballast and electronic energy-saving lamp to pre-heated stard and preheating time of the filament can come up to 0.4-2.0 seconds, which can greatly prolong service life of the fluorescent tube by over 4 times.
Product application:
1. Various types of fluorescent lamp
2. Electronic ballast
3. Electronic energy-saving lamp
Advantages:
1. Used in the frequent-switching, typical switching life can pass over 100, 000 times
2. High reliability, good performance of safety and stability
3. Wide operating temperature range
-25 ~ +125 celsius degree(when v=0v)
0~ +60 celsius degree(when v=vmax)
4. The withstanding voltage can reach to over 420-1000vac
5. The resistance will not drift in normal temperature.
6. Small dimension
7. Complete specifications
8. Stable delayed time
Remarks: many specifications for choice, and samples&orders can be custom made per customers' requirement.
PE Granules
High density polyethylene (HDPE) for non-toxic, tasteless, no smelly white particles, melting point is about 130 �° C, relative density of 0.941 ~ 0.960. It has good heat resistance and cold resistance, chemical stability, but also has high rigidity and toughness, good mechanical strength. Dielectric properties, environmental stress cracking resistance sex also is good.
Low DENSITY POLYETHYLENE (LDPE), commonly known as high-pressure POLYETHYLENE, is mainly used in plastic bags and agricultural film due to its LOW DENSITY and the softest material.
Linear Low Density Polyethylene (LLDPE) is a copolymer of ethylene and a small amount of advanced olefin in the presence of catalyst.LLDPE is similar to LDPE in appearance, with poor transparency and good surface gloss. LLDPE has the advantages of low temperature toughness, high modulus, bending resistance and stress cracking resistance, and good impact strength at low temperature.
We have a wide range of grade PE materials with different physical properties. If the table does not meet your requirements, please feel free to consult us we will try our best to meet all your requirements for plastic granules.
1. Characteristic: It is a white and colloidal micro-particle with its primary micro-particle from 5-40 nm and has obvious properties such as thixotropy, reinforcing, thickening and filling etc. and is insoluble in all kinds of solvents and liquids except hy-drofluoric acid and concentrated bases.
2. Specification: Q/SHG19-2008ItemIndex
Product: LM200
Apparent: White solid colloidal micro-particle
Specific surface area m2/g: 150�±15
PH value3.6~4.3
Heating loss weight % (m/m) â?¤1.0
Burning loss weight % (m/m) â?¤1.0
Apparent density g/Lâ?¤60
3. Uses: It is used widely in silicone rubber, construction sealant, coating, electron and electric, aerospace, medicine and medical material, resin processing, printing ink, pesticide and other industries.
LM-150: used widely in silicone acid rubber, sulfurized silicone rubber in ambient temperature (low water content), silicone neutral rubber.
LM-200: used widely in sealing ring, sealing gasket, petroleum pipeline, insulator, tablet powdered preparation, artificial viscera, infusion tube, latex nipple and high quality oil ink.
LM-300: used widely in resin thickener, thickness agent for synthetic lubricating ester, resin thixotropic agent for electronic component.
LM-380: used widely in reinforcing agent for silicone rubber, medical silicone rubber for transparent artificial organs and artificial heart etc.
4. Packing: packed with multi-layer paper plastic compound bag with net weight of 5 kg or 10 kg, or packed by whole plastic seal for users having special demand on water content.
5. Store and transport: placed in vent and dry storehouse and prevented from humid, water, pressure and throwing during transport.
Quicklime (or calcium oxide or burnt lime) is obtained by calcining pure limestone at temperature above 9000C. This highly reactive product is essential to many industrial processes. Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline, crystalline solid at room temperature. The broadly used term lime connotes calcium-containing inorganic materials, in which carbonates, oxides and hydroxides of calcium, silicon, magnesium, aluminium, and iron predominate.
Application: Steel Making, FGD, Construction, Masonry & Mortars, Water Treatment, Chemical Processes, Mining Industry, sugar industry, Paper, Pulp and PCC, Remediation of Sludges and Wastes and Glass Manufacturing.
Packing: 1000kg Jumbo bag.
Item Specification
CaO: 92.5% ± 2
Loss on Ignition at 1000 °C: 4% ±2
Grain Size: 10- 60 mm
Reactivity: High
PTC-200A/B is a platinum catalytic vulcanizing agent for molding and hot air vulcanization of compounded silicone rubber, and the vulcanized products are odorless, non-toxic, and anti-yellowing. When used for molded products, it can achieve fast vulcanization at about 110-130â?? (measured mold temperature), and at the same time, it has a relatively long waiting time at room temperature after refining.
platinum vulcanizing agent is really an effective alternative to the double two five vulcanizing agent, and more efficient, more environmentally friendly, saving the overall cost!
Ramming mass is commonly used in metallurgy, building materials, non-ferrous metal smelting, chemical, machinery and other manufacturing industries.
Ramming mass is widely used in non-core intermediate frequency furnace and core induction furnace.
As an intermediate frequency furnace ramming material, refractory ramming is applied to melt gray cast iron, nodular cast iron, malleable cast iron, vermicular cast iron, and cast alloy steel; to melt carbon steel, alloy steel, high manganese steel, tool steel, heat resistant steel, stainless steel, molten aluminum and its alloys; to melt red copper, brass, white brass, bronze and its alloys, etc.
Induction furnaces are used for melting cast iron, mild steel and various alloy steels in foundries and making of steel in mini steel plants using sponge iron
The refined high silicon, low iron quartz sand and quartz powder are selected and the fused quartz sand is added as the refractory material., with no slag, no crack, damp proof, convenience of repair, and the corrosion resistance, thus greatly improving the furnace service life span and the economic benefit..
Silica ramming mass can safely be used up to an operating temperature of 1600 deg C. Since it expands very little, it is superior to both alumina and magnesia refractories to resist thermal shocks
Acid ramming material is the premixed ramming mass of the lining material. The acid ramming mass is used to smelt a series of metal materials such as ordinary steel and carbon steel.
The lining practice best suited to a particular furnace depends upon the capacity and design of the furnace, operation practice adopted during making of a heat, and furnace output.
$ 70-$82 negotiable FOB or CIF / Metric Ton (CIF)
MOQ: 100,000 Metric ton
Guinea is renowned for producing high-grade, low-cost bauxite, particularly gibbsitic bauxite. This bauxite is characterized by low silica content (typically below 3% silicon dioxide) and a good balance of gibbsite and boehmite minerals, making it ideal for alumina production with minimal processing challenges and energy costs.
Here's a more detailed look:
Low Silica Content:
Gibbsitic Bauxite:
The bauxite is primarily gibbsite (Al(OH)3) with minimal boehmite and goethite, allowing for processing at lower temperatures and pressures, reducing energy consumption.
High Alumina Content:
Guinea bauxite typically contains around 44-46% alumina (Al2O3), a key component in the production of aluminum.
Quartz, the main component of glass, has a variety of different applications in various industries such as construction granulates and solar panels. It's a hard, crystalline mineral made up of silicon and oxygen atoms, and it's also the second most widely available mineral in the earth's crust after the feldspar
Quartz mineral has hexagonal-shaped crystals. The color range for quartz is massive. This adaptable mineral is both long-lasting and chemically inert, with high heat resistance and electrical qualities.
We source the majority of our quartz minerals from the regions of Rajasthan, Bihar and Andhra Pradesh.
It is an extremely useful mineral in the manufacturing of solar panels, semiconductors and electronics, aluminium and steel alloys, and also in the construction sector, after being transformed into silicon (Si) through gaseous reduction at high temperatures.
The physical properties of the quartz mineral are chemical inertness, thermal stability and electrical properties. It is also known for its hardness and it ranks 7 on the Mohs scale.
Our high-purity quartz mineral finds its usage in the manufacturing of the casting of silicon for photovoltaic cells that make up solar panels and semiconductor components.
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2.
Within the sector of aluminium and iron & steel industries, quartz pebbles once converted to silicon, are critical components in the production of ferro-alloys and silicon for aluminium alloys and silicone.
Further, in the refractories, high-grade quartzite-based silica minerals have been used in the fabrication of linings for the coreless induction furnaces for melting and retaining iron for decades.
We at Aryan Tiles will keep its development efforts focused on developing new markets for its high-purity quartz products that promote the usage of renewable energy sources like solar power cells.
Our main products include high-temperature resistance Silicone Coated Fabric, PTFE Coated Fabric, PTFE Adhesive Tape, Skived PTFE Tape, Non-stick Baking Mats, PTFE Mesh Belts, PTFE Seamless Fusing Belts, PTFE Seamless Sealing Belts, PTFE Architectural Membrane Materials and so on.
Our products have superior capability of high strength, high-temperature resistance, excellent chemical resistance to acid, salt and alkali, anti-bending fatigue resistance, smooth surface and good insulation, and are also antistatic, breathable, non-adhesive and non-toxic. Now they are widely used in fields like food packaging, paper printing, electronic appliances, textile, machinery, manufacturing, wood processing, plastics, garment processing, environmentally-friendly pharmacy, coal, metallurgical, chemical anti-corrosion and so on.
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