Chao Feng Electric Co., Ltd., Henan » Industry news

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

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

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.

Forging don’t worry, selected super front of intermediate frequency furnace

admin — Wed, 05 Mar 2014 06:40:35 +0000

You?familiar with any?concept of?forging.?In fact,?is the use of?forging press?forging?pressure applied to the?metal,?metaldeformation,?can be made into?a certain shape?just?and?aprocessing method of?size.?General?forging?and?consists of two parts: the first?part is the?forging,?forging?purpose can be to?eliminate?casting?porosity?metal?produced?in smelting process.?The second part?is?to?build the?stamping,?forgingforming.?To make?the product to use.

CF-400KW intermediate frequency induction furnace

Henan Chao?Feng electrical?induction furnace?has the advantages of fast,?energy-saving,?clean,?easy realization ofautomation,?high production efficiency?and online?production,which?belongs to the internal?heat source,?belonging to the non?contact?type heating method,?can provide?high power density,?in?blank?heating?surface?and depth?has?flexibility,low loss,?no?physical pollution,?the basic principle ofenvironmental protection and?sustainable development,?is one of the?green environmental protection?type heating?process.The?controlled atmosphere heat?treatment,?and?vacuum?heat treatment of less or non oxidation?technology has?become the mainstream in the development?of heat treatment?technology.

After the?metal?forging?and?casting?the same?material?has obvious advantages:

Compared?with?casting,?forging and machining?can?improve the structure?and mechanical?properties of metallic materials.Cast microstructure?after?forging method of?thermaldeformation?because of?metal deformation?and recrystallization,?the?organization?became more?closely,improving plasticity?and mechanical?properties of metals.

Forging processing?can effectively guarantee the?continuity of?fibrous tissue,?the?fibrous tissue?and forging?shapeforgings?keep basic consistent,?the metal streamlineintegrity,?can ensure that the?parts have?good?mechanical properties and?longer?service life.?The?precision forging,cold extrusion,?warm?extrusion?process for production offorgings,?castings?are?has?incomparable advantages.

Select repair scheme of CNC quenching machine tool

admin — Tue, 04 Mar 2014 09:25:23 +0000

Many customers?in the purchase of?CNC vertical?quenching machine,?can appear sometimes?circuit?board short,?no electricity,?no?display?of?digital?control system.?In view of the above situation,?our technical staff,?specialized?on arranging the?vertical quenching?machine tool?circuit boardrepair?situation?for everyone.

Vertical quenching?machine tool system?circuit board?repairmainly includes three kinds:?①?circuit board?repair?Japan;?②FANUC?(FANUC);?③?Mitsubishi?(MITSUBISHI)?circuit boardSiemens?system of machine tool.?Below we?one one?to introduce:

First: in the?repair?of NC vertical?quenching machine toolsystem?motherboard,?CPU?circuit board?(memory?ROMRAM?memoryboard)?the two?main board?is the two part of?the more important?in?NC?quenching machine,?CNC vertical?quenching machine tool?can be used with?high frequency heating?machine,high frequency induction heating?power supply?and other ancillary equipment?at work,?so customers in?repair?time,should?notice.

Second:?when it is?repair?all kinds of?servo drive?controller,attention should be paid to?the switch power supply and?servomold.

Third:?there are?various types of imported?equipment on thespecial?circuit board?repair,?when?this kind of?circuit board,have to be?careful,?these?small?parts,?repair?process,?to be careful.

Fourth:?when?repair?CNC vertical?quenching machine tool,?and the?variable frequency drive,?all kinds of industrialequipment,?PLC?and interface?board.

Fifth: is?in the electronics?industry more developed?today,liquid crystal display?has been?extended to every?electronic equipment,?CRT?(display),?liquid crystal display?is?ionrepair.

High frequency furnace?structure

Sixth:?circuit board,?is more?common in everyday life?such as:injection molding machine?circuit boards;?textile,?printing and dyeing,?chemical fiber,?garment?production lines?of various?circuit boards;?control panels?food,?beverage production line;?control?board printing?industry;?all kinds ofengineering?tire?production line?control panel?control panelof various?pharmaceutical production;?line;?process monitoringboard?chemical,?paper mill;?hospital?CT?circuit board;elevator control,?display panel;?automobile production?linecontrol circuit board?production line of wire and cable;control panels;?program-controlled switchboard?main control board?and user board?etc..

The six?circuit board?repair,?and is also suitable for?high frequency welding machine,?high frequency machine,?high frequency furnace,?heating?furnace?circuit board.?Hope that the majority of?customers in the use of?the future in the process of?repair,?pay attention to?the?situation.?Details of the call?Henan Chao?Feng electrical?or?landing http://www.yunjiangbang.com

Why high frequency furnace heating industry thriving

admin — Mon, 03 Mar 2014 06:31:27 +0000

As the high frequency?furnace?industry get army?manufacturerHenan?Feng Electrical Equipment?Co. Ltd,?make?for the development of?high frequency?heating business?efforts,?makes the?high frequency?sector?now?have been exported to overseas,has become a?science and technology?industry.?But why?high frequency furnace?will be successful,?in addition to?improvethe engineers?make?humane?treatment and?heating technology,more important is?now the national?and the international community?to?energy saving and environmental protection?value.First from the?humane treatment of?speaking,?previous machinesneed professional?training?can?operate,?so?customers to buythe machine,?but also?invited?relevant engineer,?so will be very?troublesome.?And then,?after?high frequency?furnace?downfrom generation to generation?evolution,?now only 5?minutes,everyone?can operate?in high frequency induction furnace,?Is it right??Quicker and more convenient.?The?technology ofinstant noodles,?after 8?years,?engineers have made?various attempts,?so you can?according to the customer?needs to dowork?to configure the?induction coil,?the so-called?”private custom”,?with special?equipment to do?specific?parts,?whatproblems may arise,?so?at the technical level,?is thecustomers do not need to?worry about.

: High frequency furnace?brazing

The next is the most?attention?Chinese?and even in the worldof a problem,?which is?related to safety and environmental protection.?Firstly,?high frequency furnace?is electricity,?do not burn coal,?zero emission,?no pollution,?second,electricity consumption?can be as high as fifty percent,?butafter?the evaluation,?reliability.?Third,?heating?quicklyheating speed is?less than a second,?so that the speed ofelectric charges?are difficult?to.

: 120KW?high frequency furnace

Next is the?practical?analysis: quick start,?no need of preheating?after opening.?Convenient installation,?because everything?is?prepared,?and?convenient to move,?because?the weight of the machine itself?and?not.?Small size,?does not occupy space.

HF based heating process can not be arbitrary

admin — Wed, 26 Feb 2014 06:45:09 +0000

In the high frequency?induction heating?equipment when it is working,?we must first?know the?process?problems,?only a clear understanding of the?sequence of?work?it,?can?effectively improve the efficiency of?the?work,?to avoid?unnecessary waste of resources.?The following have?professional and technical personnel?please?we?high-frequency electric furnace?factory,concrete?to explain the?process?problems about?ultrasonic frequency?quenching.

Heating wire rod

The first?step:?pre?ultrasonic frequency?quenching?process:

Pre?ultrasonic frequency?quenching machine?process mainlyrefers to:?mould?the?top?first?ultrasonic frequency?quenchingprocess includes?full annealing,?isothermal?annealing,annealing?and?tempering?process?of aluminum alloy extrusion.Below?we will?introduce:

First of all:?full annealing?to?eliminate stress,?especiallycold,?heat?stress,?improve the microstructure,?microstructurehardness,?improve the machining performance.?Full annealingmainly?dry?blank?after forging.

Secondly:?blank?annealing and?isothermal annealing?is?applied to?change?after forging,?the purpose?is the same with?the fully annealed.?But?in order to?eliminate stress,?improve tissue,reduce the hardness,?improve the machining?performance,increase the?isothermal process.

High frequency furnace

Again:?low temperature annealing?(or high?Ju?the same?fire)?is to eliminate the?internal stress,?hardness,?improve the organization,?in order to reduce the?quenching?deformationready,?commonly used to?repair?parts of the?lower?hardness andquenching?is eliminated before?processing?the stress treatment.

Super?audio quenching?machine is widely used in?all kinds of gear,?chain wheel,?shaft?quenching.?Quenching?various?axle,leaf spring,?fork,?rocker arm,?valve,?ball head pin?and other auto parts.?All kinds of?internal combustion engine fittings,reducing?surface?parts?quenching.?Quenching?machine tool?bedguide rail?of the machine tool industry?(lathe,?milling machine,?planer,?punching?etc.).?All kinds of?pliers,?scissors,quenching?ax,?hammer,?hand tools.