The main components of an oil burner are the fuel nozzles and the register. https://www.vacfurnace.com/technology-frontiers/differential-ring-gear-vacuum-heat-treatment/
The combustion process of oil is actually first atomized into small oil droplets, sprayed into the furnace cavity, and the oil droplets are heated and evaporated and diffused and burned. The intensified combustion process is achieved by intensifying the atomization, evaporation and mixing of oil and gas with air. Oil-fired furnaces produce very little soot, however, heavy hydrocarbons or carbon are solids that are difficult to burn and often leave the furnace cavity unfinished,https://www.vacfurnace.com/technology-frontiers/advantages-of-vacuum-sintering-of-cemented-carbide/ forming thick black smoke. The combustion temperature of oil is generally 1300-1500 ° C, [url][/url]https://www.vacfurnace.com/technology-frontiers/vacuum-annealing-process-of-automobile-half-shaft/and the amount of nitrogen oxides generated is much higher than that of coal-fired furnaces. Most of the sulfur in crude oil is concentrated in heavy oil, and oil-fired furnaces that use heavy oil as fuel should also pay attention to the prevention and control of SO2 pollution.https://www.vacfurnace.com/technology-frontiers/vacuum-heat-treatment-and-nitrocarburizing-of-hot-work-die-steel-4cr5mosiv1/

The holding furnace is a type of material surface that is ignited and burned at high temperature. After leaving the igniter, it is suddenly exposed to the atmosphere, resulting in rapid cooling of the red-hot material surface. Therefore, in the mineral composition of the surface sinter, the glassiness increases significantly. Strength drop, an instrument of this drawback, is an important part of the low pressure casting furnace.https://www.vacfurnace.com/technology-frontiers/automotive-leaf-spring-vacuum-heat-treatment-news/
It is composed of furnace body, molten pool, sealing cover and liquid riser, and is the basic part of low pressure casting machine.
There are many types of furnaces, such as coke ovens, gas furnaces, resistance furnaces, induction furnaces, etc. The advantages of this type of furnace are simple structure, convenient temperature control and good working conditions. The power of the holding furnace can only make up for the total heat dissipation loss.https://www.vacfurnace.com/technology-frontiers/aluminum-alloy-die-casting-mold-vacuum-heat-treatment-news/
The molten pool of the electric reverberatory furnace is large.https://www.vacfurnace.com/technology-frontiers/four-stages-of-cemented-carbide-vacuum-sintering/ In order to improve the efficiency, there must be a large heating area, so the molten pool cannot be too deep. In order to facilitate the connection between the mold opening and closing frame and the holding furnace, and to facilitate the repair of the furnace, a mobile frame can be used on the top-casting low-pressure casting machine, or the holding furnace can be designed as a mobile type. However, the heating elements of the mobile holding furnace are easily damaged by vibration and must be maintained.https://www.vacfurnace.com/technology-frontiers/slender-shaft-vacuum-quenching-news/

The transparent electric furnace (transParentfurnace) uses the infrared reflective layer to reflect the radiation of the heat energy of the heating body to keep warm. https://www.vacfurnace.com/technology-frontiers/the-function-and-the-production-of-ceramic-bulletproof-vest/At the same time, the reflective layer can transmit visible light and be transparent. It abandons the traditional thermal insulation materials, and has the advantages of simple manufacturing process, small size, light weight, and high electric heating efficiency. https://www.vacfurnace.com/technology-frontiers/casting-vacuum-heat-treatment-process/Due to the special structure of the furnace body, the heat capacity is small, the heating up is fast, and the cooling performance is good. https://www.vacfurnace.com/technology-frontiers/copper-wire-workshop-design-and-vacuum-heat-treatment/The most striking thing is that the furnace body is transparent, and the workpiece in the furnace can be directly observed during use. The equipment has a wide range of uses in scientific research and production in the fields of electronics and metallurgy.https://www.vacfurnace.com/technology-frontiers/vacuum-heat-treatment-furnace-for-molds/

Induction furnace is an electric furnace that uses the induction electrothermal effect of materials to heat or melt materials. The main components of the induction furnace are the inductor, the furnace body, the power supply, the capacitor and the control system.https://www.vacfurnace.com/technology-frontiers/slender-shaft-vacuum-quenching-news/
The main components of the induction furnace are the inductor, the furnace body, the power supply, the capacitor and the control system.
Under the action of the alternating electromagnetic field in the induction furnace, eddy current is generated inside the material to achieve the effect of heating or melting. Under the stirring action of this alternating magnetic field, the composition and temperature of the material in the furnace are relatively uniform, the forging heating temperature can reach 1250 ℃, and the melting temperature can reach 1650 ℃.https://www.vacfurnace.com/technology-frontiers/four-stages-of-cemented-carbide-vacuum-sintering/
In addition to heating or smelting in the atmosphere, the induction furnace can also be heated or smelted in a vacuum and a protective atmosphere such as argon and neon to meet the requirements of special quality. Induction furnaces have outstanding advantages in diathermy or melting soft magnetic alloys, high resistance alloys, platinum group alloys, heat-resistant, corrosion-resistant, wear-resistant alloys and pure metals. Induction furnaces are usually divided into induction heating furnaces and melting furnaces.https://www.vacfurnace.com/technology-frontiers/aluminum-alloy-die-casting-mold-vacuum-heat-treatment-news/

Industrial furnaces often involve heating processes such as smelting, drying, baking, and chemical reactions in their production processes. The industrial furnace is the heating equipment used for these processes. The fuels that provide heat sources for these devices mainly include gaseous fuels, liquid fuels, solid fuels and electricity. The use of these heating equipment is prone to burns and electric shock accidents. If gas or liquid fuel is used, it may also constitute a fire and explosion hazard in the event of leakage or spillage.https://www.vacfurnace.com/technology-frontiers/vacuum-brazing-technology-of-stainless-steel-radiator-core/
When the industrial furnace is used, the furnace door lifting mechanism must be in good condition, and the broken wire of the wire rope must not exceed the specified value. The heavy hammer is properly configured, and the exposed transmission part should be provided with a protective cover. If it is a water-cooled furnace door, it is necessary to ensure that the pipeline is unblocked, and the pipeline is not frozen in winter. The furnace door should have a limit device. When entering and leaving the furnace, there should be an interlock device to cut off the power supply. The number of broken wires in the wire rope should not exceed 10% within the pitch. The weight suspension of the balance furnace door should be reliable. It is required that the protective device of the exposed transmission part should maintain the correct installation position and the structure is reasonable. The wire rope pulley of the furnace car should be intact. All pulleys and sprockets on the kiln are well-structured, free of defects, and rotate flexibly.https://www.vacfurnace.com/technology-frontiers/heat-treatment-of-dz4-alloy-in-high-pressure-gas-quenching-vacuum-furnace/
The furnace wall and furnace lining of the industrial furnace body should be tight and free of leakage. Refractory materials are required to withstand heat, corrosion, friction and chemical erosion, and the furnace wall of the furnace body must be kept intact without any defects; the gaps between refractory materials and their products must not leak air; at the same time, the integrity of the furnace must be strong. The gas valve should be able to make the switch stop at any position according to the operation requirements, especially to cut off the fuel supply quickly when the flame is extinguished. The air valve is required to be free from loosening and leakage to maintain its integrity and reliability. Oil pipes, air pipes and heating pipes should be free of cracks and leakage. Pipelines for various purposes should be kept free of leakage, cracks and smooth, the oil nozzle should be smooth, and the oil temperature and oil (air) pressure should be kept normal.https://www.vacfurnace.com/technology-frontiers/multipurpose-vacuum-processing-equipment/

Industrial furnaces are divided into two categories according to the heating method: one is a flame furnace (or fuel furnace), which uses the combustion heat of solid, liquid or gas fuel in the furnace to heat the workpiece; the second is an electric furnace, which is used in the furnace. Convert electrical energy into heat for heating.https://www.vacfurnace.com/technology-frontiers/vacuum-heat-treatment-method-for-different-materials-of-piston-rod/Industrial furnaces are divided into two categories according to the thermal system: one is the intermittent furnace, also known as the periodic furnace, which is characterized by the fact that the furnace is not divided into temperature zones, and the furnace is produced in one or two shifts. The temperature varies, such as various chamber furnaces, trolley furnaces, pit furnaces, bell furnaces, etc.; the second is a continuous furnace, which is characterized by the division of temperature sections in the furnace, which is generally composed of preheating, heating (high temperature) ), soaking (heat preservation) three sections, the furnace is three-shift continuous production, and the temperature in each section can be considered unchanged during the heating process of industrial furnaces, such as two-stage or three-stage continuous heating furnaces , pusher type heating furnace and heat treatment furnace, annular furnace, walking furnace, vibrating hearth furnace, cupola and lime kiln, etc.

VACUUM FURNACE
Vacuum furnaces are mainly used for ceramic firing, vacuum smelting, degassing of electric vacuum parts, annealing, brazing of metal parts, and ceramic-metal sealing.
Circular Saw Machine For Low Carbon Steel
The oxidation and decarburization of the surface of the workpiece during the heating process are completely eliminated, and a clean surface without deterioration layer can be obtained. This has a great bearing on the improvement of cutting performance for those tools that only grind one side during sharpening (such as twist drills that directly expose the decarburized layer on the groove surface to the cutting edge).
Vacuum Brazing Furnace

High and low temperature test chamber test method

　　 High and low temperature test chamber is a testing equipment used to simulate high temperature and low temperature environments, and it is an indispensable testing equipment in many industries. The role of the high and low temperature box is very important, and the difficulty of operation is not as high as expected. There are a few users who are not familiar with the operation, mainly because they have not been in contact with the high and low temperature box for a long time and have not yet understood the test method of the test box.

　　Because the high and low temperature test box involves too many industries, we take the high temperature test of electronic and electronic components as an example, and refer to the standard GB/T 2423.2-2008 to show you the test setting method of the test box.

　　The temperature of high temperature detection can be selected within 30~1000℃, and the test duration can be selected within 2~1000 hours. For example, the editor chose the test condition of 100℃ and 2 hours duration. One is to turn on the device, and then select a fixed value in the catalog; you will see the standby temperature displayed on the screen (this temperature indicates the current temperature in the box, not necessarily the same as the room temperature environment). 2. Click the operation setting, and then click the setting. After entering the page, the temperature can be set to 100°C. After the temperature stabilizes for 2 hours, the equipment will end the operation.

If the purchased equipment is set in the normal program, first set the temperature to 100°C, and the time can be set to 1min or 1s, but be sure to turn on "Standby On" to ensure that the device has enough time to raise the temperature to 100°C , Proceed to the next test. The second is to set the temperature to 100°C, the time to 2 hours, and select "Standby", so that the test will automatically end when the 2 hour test time is up.

UV Carbon Arc weather Meter
UV Aging Test Chamber
Ozone test chamber

Ultra-low temperature test chamber box material

　　 Ultra-low temperature test chamber box material:
　　1. The shells are all processed and formed by A3 steel plate CNC machine tools, and the surface of the shell is treated with anti-static spraying, which is more smooth and beautiful;
　　2. The inner tank is made of SUS304 mirror stainless steel plate;
　　3. The insulation material is made of high-density glass fiber cotton, and the insulation thickness is 100mm;
　　4. The temperature circulation system adopts a special air-conditioning type low-noise long-axis fan motor, and a stainless steel multi-wing impeller with high and low temperature resistance to achieve strong convection and vertical diffusion circulation;
　　5. Double-layer high-temperature-resistant high-tensile sealing strips are used between the door and the box to ensure the tightness of the test area;
　　6. ​​The use of non-reactional door handles makes the operation easier;
　　7. The bottom of the machine adopts high-quality fixed PU movable wheels;
　　 8. The observation window is made of multi-layer hollow tempered glass, and the inner glued sheet conductive film is heated to defrost (clearly observe the test process);
　　9. The test hole (on the left side of the machine) can be used for an external test power line or signal line (the diameter or number of holes must be increased and need to be indicated);
　　 Ultra-low temperature test chamber refrigeration system:
　　 1. Compressor: fully enclosed original French Taikang unit;
　　 2. Refrigeration method: single (double) machine refrigeration (air-cooled type);
　　 3. Condensation method: forced air cooling;
　　 4. Refrigerant: R404A, R23 (environmental friendly);
　　5. The system pipelines are all tested for leak detection by venting and pressurizing 48H;
　　6. ​​The heating and cooling systems are completely independent;
　　7. Inner spiral type refrigerant copper pipe;
　　 8. Slope evaporator;
　　9. Dry filter, refrigerant flow window, repair valve, oil separator, solenoid valve, liquid storage cylinder are all imported original parts;

UV Carbon Arc weather Meter
UV Aging Test Chamber
Ozone test chamber

Ozone resistance testing machine function

The ozone resistance tester is used to test the resistance to cracking of rubber products such as vulcanized rubber, thermoplastic rubber, and cable insulation sheaths in an ozone environment. The ozone resistance testing machine can control and adjust the concentration of ozone environment to determine the ozone resistance of the test piece.

The content of ozone in the atmosphere is very small but it is the main factor of rubber cracking. The ozone resistance testing machine simulates and strengthens the ozone conditions in the atmosphere, and quickly identifies and evaluates the rubber anti-ozone aging performance and anti-ozone agent protection efficiency methods, and then adopts Effective anti-aging measures to improve the service life of rubber products.

According to the test methods and standards, it can be divided into "static" and "dynamic". Static means that the sample is stretched and placed in the test box for testing, while dynamic means that the sample is placed on the fixture of the test box and stretched while doing the test. In the test, the tensile fluctuation is about 5%-45% of the tested sample itself.

How to choose the right xenon lamp aging tester

Si48 UV carbon arc lamp aging tester maintenance

Test Equipment

Sunshine carbon arc aging machine (domestic) sealing problems

Sunshine carbon arc aging machine (is the product to be tested in a closed pressurized test, through heating, so that the water between the test chamber compartment boiling and steam, to be water steam sharply to drive out the cold air in the pot from the exhaust valve, and then close the exhaust valve, continue to heat, at this time, because the steam can not overflow, so that the boiling point increases, get higher than 100 ℃ temperature, so as to get a saturation of steam pressure.

Exploring the sealing problem of sunlight carbon arc aging machine.

In high temperature conditions, such as doing 135 ℃ end high temperature situation, the pressure difference between inside and outside the test chamber increases sharply, this time to test the test chamber body sealing do how? If the seal is not good, there will be serious air leakage, that the test chamber will not get a saturation of the vapor pressure, so as not to achieve the test conditions. This shows that the PCT high-pressure accelerated test chamber sealing has become a key issue. Sealing problems arise, some are design problems, some are maintenance problems. Therefore, we should strictly follow the equipment maintenance manual in the use of equipment for regular maintenance to ensure that the normal operation of equipment, technical parameters do not deviate.

Sunshine carbon arc aging machine (mainly used for solar photovoltaic materials, circuit boards, semiconductors, communications equipment, magnetic materials and other industry products of high humidity, high temperature, high pressure performance, can accelerate the exposure of products in the development or production of bad or defective.

UV Aging Test Chamber Structural Characteristics

ozone aging test chamber structure and application

G505-filter Medium Tester

Taber Abrasion Tester Instrument Features

Taber abrasion meter is mainly used to test the abrasion resistance of leather and plastic materials by rotating and grinding, using different kinds of abrasive wheels to rotate and rub on the sample to test the abrasion resistance of leather and plastic materials. It is used for testing the electrostatic properties of fabrics after frictional charging under laboratory conditions, and also for testing the anti-static properties of anti-static clothing and anti-static fabrics, and is suitable for Class A and Class B anti-static workwear.

Taber abrasion meter instrument characteristics.
1、Set device consists of friction device and potential device
2, friction device including friction bar, pad, pad seat and insulating rod
3, potential determination device consists of Faraday cylinder, capacitor and potentiometer
4、Positioning: Faraday cylinder: ground, electrostatic potentiometer: laboratory table (or desktop)

Test Equipment

Taber abrasion testing machine for GB/T4085-2015 test method

How to set the vacuum suction force of the abrasion tester

Chemical test items for footwear and leather products

my country is the world’s largest textile producer and exporter. As people’s living standards continue to improve, consumers’ quality requirements for textile, apparel, shoes and leather products have evolved from a single product comfort, functionality, and safety to a whole Every stage of the industrial chain, from raw materials to finished products, must protect public health and safety.

Footwear and leather products use a lot of chemical materials in the manufacturing process, and these materials are often the source of harmful substances. In order to avoid the potential hazards of footwear and leather products to human health, it is an inevitable requirement to limit the content of harmful substances such as formaldehyde, azo dyes, extractable heavy metals, and phthalates.

In addition, in recent years, my country's footwear and leather products have been recalled due to excessive harmful substances. Only by testing these products for harmful substances can we avoid trade risks to the greatest extent.

Testing Equipment


leather fastness tester


Air Permeability Tester

leather friction color fastness test machine

We provide reasonable price and high quality rotary rubbing color fastness tester. All the testing instruments manufactured by qinsun factory are well-known throughout China and more than 50 countries abroad for providing superior value and performance.

Rotary rubbing color fastness tester is suitable for the material damage and surface color transfer degree evaluation of upper material, leather, plastic, textile and other color materials after being rubbed by foreign objects. There are five test methods, including dry, wet, perspiration, alcohol and organic solution. The specimen is evaluated against the grey scale after rubbing against the rotating wool felt.

Follows are features of the tester:

With memory function, the current record will remain when unexpected power off or shutdown happens;
High stability with low noise.


Textile tester

leather fastness tester

leather friction color fastness test machine

IP PBX configurations

An IP PBX is a PBX that supports the IP protocol to connect telephones by using an Ethernet or packet-switched LAN. It sends voice conversations in IP or data packets. An IP PBX may have multiple interfaces. These include interfaces for a data network and other interfaces that allow for a connection to a telephony or circuit-switched network.

The development of real-time Internet protocols has made it possible to successfully send voice and fax messages over a data network. Such real-time Internet protocols include the VoIP protocols used with Unified Messaging: Session Initiation Protocol (SIP) over Transmission Control Protocol (TCP) for voice messaging.

These protocols have made it possible to successfully send voice and fax messages over a data network. Real-time VoIP protocols are required to send voice messages over a packet-switched or data network so the delivery order and timing of data packets can be maintained and controlled. If these protocols weren't used to maintain and control the delivery and timing of the data packets, a person's voice would be broken up and sound incoherent or the images might appear garbled.

IP PBX vs. Traditional PBX

What Is a PBX Phone System

PBX Phone System

Application of vacuum technology
VACUUM FURNACE
Metallurgical industry: The vacuum technology used in the metallurgical industry includes molten steel vacuum processing, vacuum melting, vacuum induction melting, induction shell melting, vacuum arc remelting, etc. Among them, the vacuum treatment of molten steel is a very important aspect of the metallurgical industry. This technology is mainly used in the atomic energy industry, aerospace technology, ocean drilling technology, gas engine technology, automobile industry, aircraft manufacturing, high-speed trains and other high-tech industries to control and process certain elements in steel, and to The life and reliability of materials put forward higher and higher requirements.
Materials Used For Hot Forging Dies
Electronics and microelectronics industry: Microelectronics technology requires smaller and smaller electronic components and circuits, and higher integration requirements. This is inseparable from the application of vacuum technology, especially the microfabrication technology of VLSI. The formation of geometrical structure, ultra-thin layer growth technology, and particle beam injection technology all require a high-quality and clean vacuum environment, which shows its development Dependence on vacuum technology and equipment.
Metal Hardness Test Method
Machinery manufacturing industry: Vacuum heat treatment refers to a new type of heat treatment technology that closely combines vacuum technology and heat treatment technology. Its treatment of tools, molds and precision couplings can increase the service life and accelerate the adsorption and reaction process of chemical heat treatment. In addition, its own technological operation is flexible and pollution-free has become a common treatment method in the industry.
Grinding Machine, Cnc Lathe, Sawing Machine - ants machine

What is a hosted VoIP phone service?

An increasingly popular choice for business communications, hosted VoIP is a cloud-based service where the equipment for connecting VoIP calls is managed by a third-party provider. This can save business thousands in operating expenses, not to mention eliminate the time and effort required for an on-premise VoIP phone service.

With a hosted VoIP phone service, businesses and their employees can place VoIP calls from any regular phone or mobile device. Newer hosted VoIP services also offer all the capabilities of a business phone system through desktop and web apps, allowing teams to answer and manage calls from anywhere they may work.

The development of VoIP has dramatically changed how businesses communicate by taking the place of traditional circuits. Hosted VoIP phone systems promise to make an even greater impact.

FXO/FXS Gateways

VoIP Gateway

IP Phones

Key IP PBX features

Switching from a legacy system to an IP-based PBX means that business users benefit from several more advanced features.If you’re on the lookout for a new IP PBX, be sure to look out for the following key features:

1. Voice messaging

Once a ‘nice to have’ or an optional add-on, voicemail features come as standard with your IP phone system. If you have a dynamic workforce, it might also be worth shopping around for a system that enables voicemail messages to be sent as an attachment to the recipient’s email, either as transcription or an MP3 file. Likewise, it might be worth investing in a solution that supports visual voicemail.

2. Conferencing

Multi-party conferencing has become our bread and butter in recent months, so it’s important to look for a solution that comes with in-built support not just for simple three-way calling but multiple-participant conferencing.

3. VoIP ready

With telecommunications technology evolving at an unprecedented rate, it’s natural that businesses move away from using traditional PBX systems and traditional PSTN lines. Studies have shown that 40% of businesses prefer VoIP in the UK alone. Ensuring that your PBX supports IP stations and IP trunks is key as you grow your business into the digital age.

4. Remote working capabilities

With remote and home working set to endure, it’s worth investing in a business phone system that supports this mobility and agility. It’s important to ensure your IP PBX system comes with features such as ‘Find Me, ‘Follow Me’, fixed/mobile convergence and remote IP extensions to ensure your workforce can be efficient and contactable as they work remotely or on the move.

5. Reporting and analytics

Most IP PBX systems now come with basic reporting features built-in, and some might offer more advanced reporting and analytics. Be sure to address your business requirements when it comes to reporting, and at the very least, look for a system that comes with simple call history reporting enabled.

Create a better calling experience with VoIP

How Much does a VOIP Phone System Cost

What is VoIP and Advantages

Introduction to VOIP

VOIP is an acronym which stands for "Voice Over IP".Most of us are familiar with the "Public Switched Telephone System” (PSTN), which allows us to contact people around the globe by dialling a sequence of numbers. VOIP offers an alternative, which works by routing digitised voice signals over IP networks, such as Company Intranets, or in some cases the public Internet.

On the face of it, the PSTN hasn't really changed much in more than 100 years. There have been many technology changes and improvements, such as tone dialling and Caller ID, but as far as the user is concerned, it's still a matter of dialling (more recently, pressing) a sequence of numbers, and getting connected to the person who's number was dialled. However, what happens behind the scenes to make this happen has changed considerably in recent years.

VOIP isn't a particularly new technology; there are papers and patents about the subject dating back several decades, and there was some early VOIP software available as early as 1991. The basic principle is pretty simple; it is essentially the same technology that is used to stream music across the internet. Voice sounds are picked up by a microphone and digitised by the sound card. The digitised audio is then compressed using an audio codec. This works by removing unneeded data, while maintaining the legibility of the audio, to make the stream compact enough to be sent in real time over the network.

Create a better calling experience with VoIP

Hotel Voip IP PBX System

Benefits of Having an IP-PBX System in the Office