Chao Feng Electric Co., Ltd., Henan » News advisory

The calculation method of high frequency furnace burden

admin — Mon, 22 Dec 2014 07:40:32 +0000

The calculation?method of high frequency?furnace?burden

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

High frequency quenching furnace cooling water device

admin — Sat, 16 Aug 2014 00:00:50 +0000

Cooling water device?of medium frequency induction furnaceimported?famous brand compressor,?high precision of temperature control,?stable and reliable performance,?the built-in safety,?low noise,?energy saving and durable.

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.

High frequency quenching furnace cooling water device

admin — Wed, 13 Aug 2014 03:25:27 +0000

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;

(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;

High frequency furnace suitable for computing method

admin — Tue, 01 Apr 2014 07:54:07 +0000

In fact,?each industry,?have a?bearing in mind thecalculation?in?engineer?heart,?these calculations are?a form of?them?engaged in?their?judgement,?this is?you at?the size of the workpiece,?and?give the?matching?frequencyfurnace?suitable?reason.

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

Galvanized steel pipe has been high frequency heating steel tube instead of

admin — Tue, 01 Apr 2014 05:57:24 +0000

High frequency furnace?used in?steel plastic composite?pipe processing,?because of its?excellent corrosion resistance,flow capacity?is good,?not?easy scaling,?long life and other advantages,?instead of?galvanized steel,?widely used in?building water supply project.?But?the state expresslypipes?shall not be used?zinc?steel,?so?steel plastic composite pipe?has wide?prospect of?market.?Technical personnel?today?very sharp?electrical?to introduce?this information!

In the?lining plastic?pipe?processing?in?PE pipe,galvanized steel pipe?internal?uniform and stable?weldingon the inner wall of?galvanized steel pipe,?is a decisive factor to?the quality of?steel plastic composite?pipe,heating?welding?is the use of?more.

The majority of?enterprises is the practice of?putting thePE pipe,?and through?the high-pressure air?of steel plastic composite pipe?semi-finished products,?such as large?batchfeeding?furnace heating?(heating furnace?in advance throughcombustion engine?preheating),?baking after a period of time,?the whole?batch of products?reaches the set temperature,?remove the?plastic composite pipe,?post orderprocessing.

This?heating mode?is the first?large occupation area of equipment,?a?high cost.?Only?a toaster?covers an area ofabout one hundred?square meters,?including?ventilation equipment,?combustion equipment,?work?bench?and other ancillary equipment?requires a lot of?production space.More importantly,?this?device?when?starting?work,?must advance?preheat,?a?hundred?cubic?space?pre?heatingtemperature?to the desired temperature,?need a lot of energy,?and when the?work is finished,?the?heat?will?Bai Bai waste.?The high oil price era,?this is a waste.

Because the furnace?cavity,?when a large number of?steel plastic composite?pipes are arranged in the?pipe?wall,uneven heating,?will inevitably lead to the?composite pipeinner layer?foaming,?wrinkle,?affecting the quality of.Therefore,?induction heating equipment,?we?must?pay attention to relevant information?in this aspect?in the application of time,?reduce unnecessary losses and troubles!?More?high frequency furnace,?medium frequencyfurnace and?high frequency?welding related?information?are welcome to?continue to pay attention to our!

Galvanized steel pipe has been high frequency heating steel tube instead of

admin — Sat, 22 Mar 2014 09:34:12 +0000

High frequency?heating?furnace?steel

High frequency furnace industry manufacturing technology

admin — Mon, 17 Mar 2014 03:10:22 +0000

What re manufacturing? The process is to make the old machines with renewed vigor. The old machinery and equipment as a blank (Core), the technology and expertise, a new manufacturing based on the original manufacture, and re manufactured products in both performance and quality is as good as the original product.

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.

Gear is made of high frequency induction heating equipment for quenching advantage

admin — Fri, 14 Mar 2014 07:46:50 +0000

In order to improve the?gear hardness,?wear resistance and service life,?we usually?use?high frequency induction heating equipment?for?quenching?of?gears.?Why?induction quenching?so popular?

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.

Gear is made of high frequency induction heating equipment for quenching advantage

admin — Thu, 13 Mar 2014 03:50:26 +0000

In order to improve the?gear hardness,?wear resistance and service life,?we usually?use?high frequency induction heating equipment?for?quenching?of?gears.?Why?induction quenching?so popular?

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

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.

Causes of nip in the bud of intermediate frequency furnace fault

admin — Tue, 11 Mar 2014 02:09:21 +0000

Our application in?medium frequency furnace?quenching?has been?very mature,?but the?intermediate frequency?furnace equipment?or some place?is prone to failure,?in the?processwhere the use?and operation?must?pay attention to,?so as to avoid accidents.

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.