High frequency furnace burden is calculated as follows:

(1) the changes of high frequency furnace burden calculation of each element in the

A) the carbon content of molten iron charge: C% = 1.8% + 0.5 Ccharge%

Molten iron to the average carbon content of 3.4%, according to the type of C charge is%=3.2%;

B) silicon content of hot metal charging: the needs of theaverage content of silicon of 1.75%, if the silicon melting lossis 15%, then the

Si =1.75/ (1-0.15) =2.06% charge;

C) charge of manganese content hot metal melting loss of known Mn =0.65%, 20%, so the Mn charge =0.65/ (1-0.20) =0.81%;

D) sulphur content of molten iron burden of known S =0.12%,increases the sulfur 50%, are: S =0.12/ (1+0.5) =0.08% charge;

E) charge amount of phosphorus phosphorus no major changes in the melting process, P <0.25% =P hot metal charge

Integrated the above result, the required charge configuration for the average chemical composition:

C charge 3.2%, Si 2.06%, Mn 0.81%, charge charge S charge<0.08%, P charge <0.25%

(2) determine the initial high frequency furnace burden ratio

A) returns ratio: mainly depends on the rejection rate and the rate of finished products, it varies with the specific production. Here 20%.

The new iron and steel scrap ratio b): set the new iron for X%,then scrap as 80%- x%. According to the charge required carbon content is 3.2%, the new pig iron, scrap, scrap the carbon content of each is 4.19%, 0.15%, 3.28%, can list type:

4.19 x +0.15 (80- x) +3.28*20=3.2*100

Obtains x =60.0%. The iron material ratio: Z15 of pig iron,scrap steel, scrap 60% 20% 20%.

(3) high frequency furnace and then according to the proportionand various charge composition, calculation of charge componentssuch as table 3.

Table 3 charge composition

(4) high frequency furnace iron alloy addition amountcalculation

A) adding amount of this lack of silicon content in ferrosilicon0.67%, i.e. 100 kg per 0.67 kg of burden add silicon. Thesilicon content in ferrosilicon is 45%, so every 100 kilograms of charge must add the ferrosilicon weight of 0.67/0.45=1.5 kg

B) calculation ferromanganese added amount of the same method,every 100 kilograms of charge must join with 75% Mnferromanganese: 0.12/0.75=0.16 kg.

(5) high frequency furnace making the list of ingredients

According to the amount of iron ratio and layer, determine thevarious charge for each batch of charge weight, write a list of ingredients. A known layer of iron 500 kilograms, is composed ofeach batch of iron material: pig iron, scrap steel::500*60%=300 kg 500*20%=100 kg, scrap: 500*20%=100 kg, 45% ferrosilicon

Intermediate frequency furnace cooling water device working principle is to inject a certain amount of water in the water tank, the cooling system cooling water machine water cooling, low temperature cooling water by the water pump will be sent to thecooling equipment, chillers chilled water takes heat away after the temperature back to the water tank, the cooling effect. The cooling water temperature can be adjusted automatically according to the requirements, long term use can save water…

Intermediate frequency furnace cooling water device main role is to provide cooling water to the industry of equipment cooling, so as to improve the precision of products, improve the efficiency of production.

Intermediate frequency furnace cooling water devicecharacteristics:

(1) compressor selection of imported brands of compressor in low temperature;

(2) the use of refrigerants such as R404A, R410a, R22/R407C, meet the refrigeration temperature and environmental requirements;

(3) according to the needs of users, can choose a variety ofcoolant (Leng Dongshui): ethylene glycol aqueous solution,alcohol, three alcohol mixture refrigerant, can also be designed according to the corrosion of the evaporator, the aqueous solution of calcium chloride;

(5) according to the non-stop operation design for 24 hours, which can meet the cold source with various continuous production process;

(6) units according to cold bring the water tank and the circulating water pump, without cooling tower and water pump, the installation and simple and convenient;

(7) equipped with various safety devices, stable performance, low noise, low temperature cold water machine with long service life,simple operation; the LCD interface, simple and convenient operation, operation status at a glance;

Intermediate frequency furnace cooling water device for metallicdiathermy forging of direct quenching processing, automatic operation, increase product surface hardness and wear-resisting degree. Metal luster, reinforced metal texture, exquisiteproducts.

Intermediate frequency furnace cooling water device working principle is to inject a certain amount of water in the water tank, the cooling system cooling water machine water cooling, low temperature cooling water by the water pump will be sent to thecooling equipment, chillers chilled water takes heat away after the temperature back to the water tank, the cooling effect. The cooling water temperature can be adjusted automatically according to the requirements, long term use can save water…

Intermediate frequency furnace cooling water device main role is to provide cooling water to the industry of equipment cooling, so as to improve the precision of products, improve the efficiency of production.

Intermediate frequency furnace cooling water devicecharacteristics:

(1) compressor selection of imported brands of compressor in low temperature;

(2) the use of refrigerants such as R404A, R410a, R22/R407C, meet the refrigeration temperature and environmental requirements;

(3) according to the needs of users, can choose a variety ofcoolant (Leng Dongshui): ethylene glycol aqueous solution,alcohol, three alcohol mixture refrigerant, can also be designed according to the corrosion of the evaporator, the aqueous solution of calcium chloride;

(5) according to the non-stop operation design for 24 hours,which can meet the cold source with various continuous production process;

(6) units according to cold bring the water tank and the circulating water pump, without cooling tower and water pump, the installation and simple and convenient;

(7) equipped with various safety devices, stable performance, low noise, low temperature cold water machine with long service life,simple operation; the LCD interface, simple and convenient operation, operation status at a glance;

Intermediate frequency furnace cooling water device for metallicdiathermy forging of direct quenching processing, automatic operation, increase product surface hardness and wear-resisting degree. Metal luster, reinforced metal texture, exquisiteproducts.

Below we list the relevant calculation formula:

Power = high frequency induction heating (heating temperature of workpiece material heat * * weight) ÷ (time * heating efficiency of *0.24)

Power = high frequency quenching furnace (depth of quenching quenching area is *0.68 *)

The intermediate frequency melting = if capacity divided by 2

The above is the conversion, the high frequency furnace.However, some artifacts only know the length and theheating radius, can know how much the machine can do, this is my former engineer mouth got the answer:

Bar: (3.14*r*r*7.85* length) ÷ 1000000= single

The machine power ÷ ÷ 30KW single = every heating root number

Sheet algorithm length * width * thickness of *0.00785=sheet weight

Cylinder, piston rod, the column is one of the most important components in the hydraulic support, is the main component of supporting and bearing the hydraulic support, the anti corrosion ability directly affects the use of the whole hydraulic support. At present, the hydraulic support cylinder domestic coal industry production and maintenance of the outer circle surface of chromium plating technology is widely used for protection, use early good corrosion resistance, but to adapt to the underground environment performance is poor, the chromium plating layer’s fatal weakness is the pore and crack easily cause corrosion, affect the service life of the oil cylinder of hydraulic support, increased maintenance costs, the use of serious will endanger the safety of hydraulic support product.

Its basic principle is to use a certain density of high power laser irradiation of hydraulic cylinder rod, make irradiated bar stainless steel powder coated surface wear area to reach the melting point began to melt. When the laser beam irradiation is stopped when the heating zone, rapid cooling and stainless steel powder solution cooling, the stainless steel powder and melting in a metal cylinder rod outer surface, so that the workpiece surface of remanufacturing repair

Future oriented development, Henan Chao Feng Electrical Equipment Co., Ltd. will be more committed to leading the application of advanced technologies, to build the core competitiveness. At present, company based on its own unique inspection means and methods, formulate is actively involved in the laser cladding inspection standards, and strive to develop industry standards, to enhance its competitive strength, improve the competitive threshold, set up the authority of.

First of all, we should understand, gear is consumable, so the increase in hardness is its core technology.

The first step is to choose the gear material. Selection of metal hardness large, such as steel, the metal is very good.But the copper and aluminum this at work is easily deformed,so there is little the material with gear.

The second step, is to choose the process. In ancient times the sword should all be seen, are repeated heating, cleaning the bathroom, and then a good sword becomes very sharp. But can now be developed, not so old, have special quenchingmachine use. This machine is called high frequency furnace,some place called high frequency machine.

The third step is to choose the appropriate power. Power is too large, is a waste of resources, power is very small, but also a waste of time. But the use of power much, is the wise remark of an experienced person, more knowledgeable peopleteach better.

Today, we will simply say that the induction heatingequipment for gear induction hardening have what advantage.

1, reduce the deformation of workpiece, maintain stable size.

2, lower equipment cost, processing cost reduction gear.

3, close to the root fillet, with an extremely high residualcompressive stress, improves bending fatigue strength of gear teeth, with excellent strength gradient.

4, improve the metallurgical properties of parts, and eliminates the generation in the process of heat treatment,such as oxidation, decarburization.

5, compared with traditional gear quenching process, the pitch circle of larger depth of tooth, hardness and high strength, in the Addendum will not produce overheat andbrittle.

High frequency induction heating equipment for induction hardening has many advantages for gear, is more than 5 pointslisted above, this is the best equipment for heat treatment of workpiece.

First of all, we should understand, gear is consumable, so the increase in hardness is its core technology.

The first step is to choose the gear material. Selection of metal hardness large, such as steel, the metal is very good.But the copper and aluminum this at work is easily deformed,so there is little the material with gear.

The second step, is to choose the process. In ancient times the sword should all be seen, are repeated heating, cleaning the bathroom, and then a good sword becomes very sharp. But can now be developed, not so old, have special quenchingmachine use. This machine is called high frequency furnace,some place called high frequency machine.

The third step is to choose the appropriate power. Power is too large, is a waste of resources, power is very small, but also a waste of time. But the use of power much, is the wise remark of an experienced person, more knowledgeable peopleteach better.

Today, we will simply say that the induction heatingequipment for gear induction hardening have what advantage.

1, reduce the deformation of workpiece, maintain stable size.

2, lower equipment cost, processing cost reduction gear.

3, close to the root fillet, with an extremely high residualcompressive stress, improves bending fatigue strength of gear teeth, with excellent strength gradient.

4, improve the metallurgical properties of parts, and eliminates the generation in the process of heat treatment,such as oxidation, decarburization.

5, compared with traditional gear quenching process, the pitch circle of larger depth of tooth, hardness and high strength, in the Addendum will not produce overheat andbrittle.

High frequency induction heating equipment for induction hardening has many advantages for gear, is more than 5 pointslisted above, this is the best equipment for heat treatment of workpiece.

The first is to wear furnace, liquid steel lining out isfrom, should often detect lining, repairs, or re build furnace, observed on the instrument, usually direct currenthigher than usual, doing little, an unusual sound, can be prevented; followed by the capacitor breakdown, filtering andcompensation capacitor easy breakdown, main due to a bad cooling heating, oil spills, or quality is not good,according to the voltage value using the megger measurementcan detect simple; then is to design a quick may explode,intermediate frequency furnace sound wrong or cannot be established to check; the last is the thyristor maybreakdown, multimeter can be judged, soft breakdown is time-consuming, sometimes not feeding power, each to protect or trip to a certain value, of course, this phenomenon is not necessarily a silicon tube thing, other original bad willcause this phenomenon.

CF-400KW intermediate frequency induction furnace

Intermediate frequency furnace and failure to stop the operation, inspection and repair of the, in order to ensure the normal work of the medium frequency furnace.