浙江萬能達爐業(yè)有限公司
手 機： 13705828806
電 話：0572-6871999 6087213 6870511
傳 真：0572-6087105
E-mail：1390003299@qq.com
地 址：浙江省長興縣林城工業(yè)園區(qū)鼎興北路6號（林城高速路口下20米左側）
一、設備概述和用途：
本設備適用于在氫氣下利用中頻感應加熱原理進行金屬熱處理的現代化設備。本產品加熱是一種交一直一交靜止變頻裝置，它將50Hz三相工頻電能轉換成單相中頻電能。該系列設備應用電磁感應原理，在保護氣體環(huán)境下置工件于交變磁場中，產生渦流損耗而發(fā)熱，達到燒結、透熱等加熱的要求。這種加熱方式，具有加熱快、燒損少、勞動強度低，能確保產品質量。
四、主要技術參數：
a) 額定工作電源 3N 380V±20V，50Hz±1Hz
b) 額定加熱功率 約500kw(實際加熱功率無級可調)
c) 額定工作爐溫 2350℃（設計爐溫2400℃）
d) 升溫速率 ≤ 20℃/min
e) 儀表控溫精度 ≤±2℃
f) 測溫方式 0-1000℃ 熱電偶（自動送出式）1000-2500℃紅外
g) 控溫方式： 手動控制及智能化程序控制（按給定升溫曲線升溫）
h) 溫度記錄： 小長圖記錄儀記錄溫度及工控電腦數據記錄
i) 工作氣氛： 氫氣（氫氣流量不小于20m3/h，壓力不小于0.04MPa。）
j) 保護氣氛： 氮氣 （壓力0.04MPa）
k) 高溫區(qū)有效尺寸： Ф600×1500
l) 發(fā)熱體規(guī)格 Ф600×1500（鎢）
m) 爐體型式 立式
n) 出料方式： 上出料
o) 真空抽速 ≤0.5小時
p) 空爐冷態(tài)極限真空度 ≤ 10Pa
q) 壓升率 ≤0.67 Pa/h
r) 爐體外表面溫升 ≤30℃
s) 冷卻水額定壓力 0.1~0.3M Pa
t) 冷卻水流量： 約15 m3/h
u) 壓縮空氣的壓力 0.4-0.6 MPa
v) 中頻加熱參數：
l 中頻電源頻率 2500HZ
l 整流方式：三相全控橋整流
l 額定直流電壓： 510V
l 額定直流電流： 500A
l 額定輸出電壓： 750V-800V
l 額定功率： 500KW
l 效率: ≥92%
l 控制方式：數字集成電路控制。
l 觸發(fā)脈沖：雙窄列脈沖。
保護方式：
l 過流、過壓整流拉逆變保護；
l 截流、功率封鎖保護
l 繼電保護；RC、LC吸收保護
l 快速熔斷器保護
l 爐溫超溫、超調保護，測溫傳感器故障保護
l 系統(tǒng)欠水、缺水、水溫超溫及水壓超高保護
l 保護氣體欠流量保護
功率調節(jié)方式：
l 手動方式；
l PID調節(jié)，沿指定升溫曲線自動工作方式(用戶指定)。
五、原理，結構及特點
本設備由爐體、真空獲得系統(tǒng)、電氣控制系統(tǒng)、真空控制系統(tǒng)、中頻加熱系統(tǒng)，充氣系統(tǒng)，水冷系統(tǒng)等部分組成。本設備是利用中頻感應加熱的熱處理設備，爐體內部設有一只螺旋型管式線圈，當線圈通以中頻電流時，則產生交變磁場。金屬爐料在磁場作用下，感應出電勢，產生環(huán)形電流，這種電流在本身的磁場作用下，集中在金屬爐料的外層，使外層金屬爐料具有很高的電流密度，從而產生集中而強大的熱效應，已致把金屬加熱，使爐內產生高達2400℃的高溫。
Hydrogen sintering furnace (upper discharge structure)
Upper discharge hydrogen high temperature sintering furnace
Hydrogen medium frequency induction heating sintering furnace
First, equipment overview and use:
This equipment is suitable for modern equipment for metal heat treatment under the principle of medium frequency induction heating under hydrogen. This product heating is a kind of static and constant frequency conversion device, which converts 50H z three-phase power frequency electric energy into single-phase intermediate frequency electric energy. This series of equipment applies the principle of electromagnetic induction. Under the protective gas environment, the workpiece is placed in an alternating magnetic field, which generates eddy current loss and generates heat, which meets the requirements of heating such as sintering and heat transmission. This heating method has the advantages of fast heating, less burning loss and low labor intensity, which can ensure product quality.
Fourth , the main technical parameters:
a) Rated working power supply 3N 380V ± 20V , 50H z ± 1 Hz
b) Rated heating power is about 500kw (the actual heating power is steplessly adjustable )
c)Rated working furnace temperature 2350 °C (design furnace temperature 2400 °C)
d) Heating rate ≤ 20 °C / min
e) Instrument temperature control accuracy ≤ ± 2 ° C
f) Thermometry 0-1000 °C thermocouple (automatic delivery) 1000-2500 °C infrared
g) Temperature control method: Manual control and intelligent program control (heating according to a given temperature rise curve)
h) Temperature record: Small long chart recorder records temperature and industrial computer data record
i) Working atmosphere: Hydrogen (hydrogen flow rate is not less than 20 m 3 /h , pressure is not less than 0. 0 4 M P a .)
j) Protective atmosphere: nitrogen ( pressure 0.04MPa )
k) Effective size in high temperature zone: Ф600×1500
l) Heating element size Ф600×1500 (tungsten)
m) Furnace type vertical
n) Discharge method: upper discharge
o) Vacuum pumping speed ≤ 0.5 hours
p) Empty furnace cold state ultimate vacuum ≤ 10Pa
q) Pressure rise rate ≤ 0.67 Pa/h
r) Furnace surface temperature rise ≤ 30 °C
s) Cooling water rated pressure 0.1~0.3M Pa
t) Cooling water flow: approx. 15 m 3 /h
u) Compressed air pressure 0.4-0.6 MPa
v) Medium frequency heating parameters:
1 IF power frequency 2500HZ
2 Rectification mode: three-phase full control bridge rectification
3 Rated DC voltage: 510V
4 DC Current Rating: 500A
5 Rated output voltage: 750V-800V
6 Rated power: 500KW
7 Efficiency: ≥92%
8 Control method: digital integrated circuit control.
9 Trigger pulse: double narrow column pulse.
Protection method:
10 Overcurrent, overvoltage rectification pull inverter protection;
11 Shutoff, power blocking protection
12 Relay protection; RC , LC absorption protection
13 Fast fuse protection
14 Furnace temperature over temperature, overshoot protection, temperature sensor fault protection
15 System under water, water shortage, water temperature over temperature and water pressure ultra high protection
16 Protective gas underflow protection
Power adjustment mode:
17 Manual mode
18 PID adjustment, automatic working mode along the specified heating curve ( user specified ) .
Fifth, the principle, structure and characteristics
The equipment consists of a furnace body, a vacuum obtaining system, an electric control system, a vacuum control system, an intermediate frequency heating system, an aeration system, and a water cooling system. The device is a heat treatment device using medium frequency induction heating. The inside of the furnace body is provided with a spiral tube coil. When the coil is connected with an intermediate frequency current, an alternating magnetic field is generated. The metal charge induces an electric potential under the action of a magnetic field to generate a toroidal current. This current concentrates on the outer layer of the metal charge under the action of its own magnetic field, so that the outer metal charge has a high current density, thereby generating a concentrated and powerful The thermal effect has caused the metal to be heated to produce a high temperature of up to 2400 °C.
http://www.firstfurnace.com/BdwlkjProduct.asp?id=372
http://www.firstfurnace.com/BdwlkjProduct.asp?id=374
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