i am son bong-hyeon, the representative director of · pdf filei am son bong-hyeon, the...
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How are you?I am Son Bong-Hyeon, the representative director of MHT Co., Ltd.Thank you for visiting our homepage.Our company has constantly put in efforts and passion into heat treatment and technology development of inland plant and maritime plant, since its establishment in 2006.Major business areas handle with all of general businesses related to heat treatment including pre/post heat treatment related to welding (full, local), gas firing, solution annealing, manufacturing, installation and repair of heat treatment furnace, etc.We will respond to requests of the customers with reliable business process by the staff with plentiful field experiences and technical power equipped with advanced facilities and equipment.Every director and employ of MHT has kept the company motto called creativity, credibility and right management in mind and today makes their efforts at their position for better tomorrow.We will further focus on challenge spirit and progressive posture.Thank you.
President Son Bong-Hyeon
| Introduction
| History
2006. 09 Establish a company MIRAE EnG2006. 09 Business partner with SEDAE ENERTECH2011. 03 Gunsan business place open 2011. 05 Business partner with KHE 2011. 10 Business partner with SEWONCELLONTE2012. 12 Changed company name to Myung-jin tech win2012. 12 Business partner with Tongyang TS 2013. 03 Got certified ISO 9001, 14001 Certificate2013. 03 Business partner with ENERGY EN 2013. 07 Increase of capital to 5 hundreds million won2013. 08 Business partner with MOOJINKEEYEON2014. 02 Increase of capital to 8 hundreds million won2014. 02 Got certificated patents - Management method of lead cast device and temperature2014. 07 Gunsan exculsive heat-treatment facility built 2014. 07 Main location moved to Gunsan and company name changed to MHT2014. 07 Business partner with HANHWA ENERGY2014. 11 Got certificated OHSAS 180012014. 11 Business partner with Hanwha Energy Corporation2016. 01 Business partner with CASCO2016. 01 Got Patent Pipe heat treatment device2016. 03 Business Business partner with DAELIM C&S
No. Content’s Customer Year
1 500Ton & 700Ton Transpoter Main Flame RAINHO 2006
2 SONGKHLA PJT HRSG Coil Module SEDAE ENERTECH 2006
3 Wooljin Nuclear Power Plant Feed Water Heater etc. SEDAE ENERTECH 2007
4 LEAMCHABAANG PJT HRSG Coil Module SEDAE ENERTECH 2008
5 ZCC PJT HRSG Coil Module SHINWOO D TEC 2008
6 JL STALL PJT HRSG Coil Module SEDAE ENERTECH 2009
7 THISVI PJT HRSG Coil Module SEDAE ENERTECH 2009
8 MARCINELLE PJT HRSG Coil Module SHINWOO D TEC 2009
9 BATET PJT HRSG Coil Module SEDAE ENERTECH 2009
10 WEST COUTY Ⅲ PJT HRSG Coil Module SEDAE ENERTECH 2010
11 COMPOSTILLA PJT HRSG Coil Module SEDAE ENERTECH 2010
12 ANTALYA2 PJT HRSG Coil Module SEDAE ENERTECH 2010
13 DEER CREEK PJT HRSG Coil Module SEDAE ENERTECH 2010
14 LODI ENERGY CENTER PJT HRSG Coil Module & Steam Drum SEDAE ENERTECH 2010
15 MRC CCR PJT Piping G-PEM HEAVY INDSTURI 2011
16 CCEC PJT HRSG Coil Module & Steam Drum SEDAE ENERTECH 2011
17 RUSSEL CITY PJT HRSG Coil Module SEDAE ENERTECH 2011
18 VGO FCC PJT Air-Cooled Heat Exchanger KHE 2011
19 LA CARIDAD PJT HRSG Coil Module SEDAE ENERTECH 2011
20 REHCL LINE PJT Piping OCI 2011
21 RBEC PJT HRSG Coil Module & Steam Drum SEDAE ENERTECH 2012
22 SUR IPP PJT HRSG Coil Module SEDAE ENERTECH 2012
23 DANGJIN TERMAL POWER PLANT UNIT 9 Sea Water Pipe Line SAMSUNG C&T 2012
24 SUR IPP PJT HRSG Coil Module SEDAE ENERTECH 2012
25 GROUP Ⅲ BOPF PJT Heat Exchanger SEWON CELLONTECH 2012
26 NGI PURE CASE PJT Air-Cooled Heat Exchanger KHE 2013
27 KOK’S GOLIATH CRANE 1,200 Ton Girder etc.KOK’S
KRANE(GREMANY)2013
28 GNS NONGSAENG PJT HRSG Coil Module SEDAE ENERTECH 2013
29 ASHUGANJ CCPP PJT HRSG DKME 2013
30 THE 2nd PYEONGTAEK CCPP PJT HRSG Coil Module & Piping SEDAE ENERTECH 2013
31DANGJIN TERMAL POWER PLANT UNIT 9 & 10
ENERGY EN 2013Deaerator , Feed Water Tank etc.
32 CHEYENNE PRAIRIE PJT HRSG Coil Module SEDAE ENERTECH 2013
33 CERNAVODA 2 FPTF PJT Automic Power Shielding Facility MOOJIN KEEYEON 2013
34 ADD-ON PJT HRSG Coil Module SEWON CELLONTECH 2013
35 GUT U-THAI POWER PLANT PJT HRSG Coil Module SEDAE ENERTECH 2014
| Principal Performance
No. Content’s Customer Year
36 AIN-ARNAT PJT HRSG DKME 2014
37 #1 LBO(EPC) PJT Air-Cooled Heat Exchanger KHE 2014
38 REVERTON PJT HRSG Coil Module SEDAE ENERTECH 2014
39 OSAN CCPP PJT HRSG Coil Module SEDAE ENERTECH 2014
40SHINBORYEONG TERMAL POWER PLANT UNIT 1 & 2
ENERGY EN 2014Deaerator , Feed Water Tank etc.
41 NSRP COMPLEX PJT Combined Feed Exchanger SEWON 2014
42 HAMON J13101-WHB PJT Steam Generator SEDAE ENERTECH 2014
43 UNIT 2620 PJT Piping HHI 2014
44 TAIWAN TUNGHSIAO PPT PJT condenser SEDAE ENERTEC 2015
45 MOGAS COGEN PJT Steam Heater etc SEWON 2015
46 CAMERON LIQUETACTION PJT Air-Cooled Heat Exchanger SEWON 2015
47 SHUQAIQ SPP PJT Feed Water Heater etc ENERGY EN 2015
48 MOGAS COGEN PJT Air-Cooled Heat Exchanger KHE 2015
49 Pagbilo 420MW 3Unit CFP PJT, Deaerater DAELIM 2016
50 NISHI NAGOYA LB PIPING PJT, Pipe Spool NOOTER ERICSEN 2016
51 MONG DUONG 1 TPP PJT, Feed Water Heater SUNG HYUN 2016
| Principal Performance
| Major Accounts
(주)엠에이치티
| Business Sites
| Gunsan Facility
• Address : 80 myeokro Gunsan city jeonbuk Korea • Tel No : +82-063-468-0320, +82-063-462-5522• Fax No : +82-063-467-0318• E-mail : [email protected](Technology, business)• Area(m²) : 6,611 (2,216)• The main workswelding-related heat treatment, annealing furnace heat treatment equipment production.
• Major appliancescar type annealing furnace(250t, 50t), electric furnaces 4ea, electrical resistance heat treatmentequipment 212ea, 50T crane 4ea
• Address : 23-1 banjiro sungsangu, chang won city kyungnam Korea • Tel No : +82-055-237-9017• Fax No : +82-055-237-9018• E-mail : [email protected](Technology, business)• The main workswelding-related heat treatment, annealing furnace, heat treatment equipment production.
• Major applianceselectrical resistance heat treatment equipment 124ea
1. Head Office(Gunsan) 2. Chang won
view of Gunsan facillity
inside of plant office and machine room control panel of car type annealing furnace
car type annealing furnace(250t,50t)
NoName offacility
Standard Quantity Year Code Country
1
Car Type
Heating
Furnace
Charge maximum heat treatment capacity : 250 t/Charge
heat source : L.N.G(city gas)
maximum temperature : 900
valid load size : W 7,800 X L 21,500 X H 9,500
1 2014 MHT-CF250 Korea
2
Car Type
Heating
Furnace
Charge maximum heat treatment capacity : 50 t/Charge
heat source : L.N.G(city gas)
maximum temperature : 1,000
valid load size : W 3,800 X L 7,500 X H 4,200
1 2014 MJ-CF50 Korea
3
Electric
Heating
Furnace
heat source : electrical resistance
maximum temperature : 1,100
valid load size : W 1,900 X L 4,000 X H 1,500
2 2013 MJ-EF-01,02 Korea
4
Electric
Heating
Furnace
heat source : electrical resistance
maximum temperature : 1,100
valid load size : W 1,500 X L 3,000 X H 1,200
1 2013 MJ-EF-03 Korea
5
Electric
Heating
Furnace
heat source : electrical resistance
maximum temperature : 1,100
valid load size : W 3,500 X L 3,500 X H 1,800
1 2013 MJ-EF-04 Korea
6
Electric
Heating
Furnace
heat source : electrical resistance
maximum temperature : 1,100
valid load size : W 2,600 X L 4,200 X H 2,200
1 2014 MJ-EF-05 Korea
7Gentry
CraneIndustrial standard : 50/10 Ton 1 2014 MJ-GC-01 Korea
8Gentry
CraneIndustrial standard : 50 Ton 1 2014 MJ-GC-02 Korea
9Hoist
CraneIndustrial standard : 30 Ton 1 2014 MJ-HC-01 Korea
10Hoist
CraneIndustrial standard : 10 Ton 1 2014 MJ-HC-02 Korea
11 Fork Lift Industrial standard : 7 Ton 1 2014 MJ-FL1 U.S.A
12 Office Car Industrial standard : 1 Ton 1 2013 MJ-CP Korea
13 Office Car Industrial standard : a six seater van 1 2013 MJ-CS Korea
14
Heat
Treatment
Factory
area(m²) : 6,610
transformation facility : 950KVA
size of plant : W23,000 X L76,000 X H12,000
subsidiary equipment : Arc,Tig,Co2 ,
Utility Line -Air, Co2, Ar
water pressure tester and drainage equipment,
100 Hp air compressure Office and laboratory,
dormitory
1 2014 MHT-HTF
| Facilities
NoName of
EquipmentQuantity Purchased year Code Manufacturing country
1 Power Regulator 218 2006 ~ 2013 MHT-RG-01~218 M.H/Korea
2 Temp. Recorder 47 2006 ~2013 MHT-RC-01~47 CHINO/Japan
3 Program Controller 34 2006 ~ 2013 MHT-CT-01~34 M.H/Korea
4 T.A.U 20 2006 ~ 2013 MHT-TAU-01~20 M.H/Korea
5 Hardness Tester 2 2011 ~ 2014 MHT-PHT-01,02 MIC-10/Germany
6 IR THERMOMETER 2 2014 MHT-ITM-01,02 FLUKE-572-2/U.S.A
7 Heating Band 8,000 at ordinary times OMEGA/England
KANTHAL/England
8 Gas Firing Sytem 2 2013 MHT-G.F-01,02 M.H/Korea
| Equiptment
| Equipment Specifications
• Power supply : AC 220V/380V/440V. 50/60Hz
• Electric power output capability : 30/60Kw
• Electricity : 150A
• Adjusting range of temperature : 0∼1200
• Size : W215 X L400 X H240
• Power supply : AC 220V. 50/60Hz
• Recording range : 0∼1200
• Stoke number of recording : 12Point
• Data recording sheets : 12.5, 25, 50, 100m/hr
• Data recording type : No.ET201
• Size : W300 X L400 X H350
1. S.C.R Power Regulator
2. Temperature Recorder
| Equipment Specifications
• Power : AC 220V. 50/60Hz
• Size : W335 X L400 X H345
• Range of Temperature : 0∼1200 K' Type
• Heating and cooling : Auto(Analog)
• Number of temperature control : 6CH
• Speed of temperature control : Up. Keep Rate
0∼999/hr Keep Time 0∼99.9h/r
• Power : AC 220V. 50/60Hz
• Electric power output capability : DC 0∼50V
• Size : W178 X L253 X H128
• Measuring range : 20∼1740HV
• Display : 4digital LCD
• Working temperature : -15∼55
• Size : W70 X L160 X H45
• Working temperature : -30~900
3. Temperature Controller
4.Thermo-Couple Attechment Unit
5. Hardness measuring instrument
6. IR Thermometer
| Equipment Specifications
• Tyoe : Mat type
• Wire : Ni80 Cr20
• Wire : Nikrothal80
• Range of Temperature : 0 ~ 1,150
• purpose of use : ANNEALING ,
Normalizing, SOLUTION
SOLUTION ANNEALING
7. Heating Pad
8. Gas Firing System
9. Electric furnace
| Heat Treatment
1. Pre-Heating & Dehydrogen Heat Treatment
ᆞWelding Preheating : A method of thermal treatment related to welding conducted
before/during welding.
- Purpose of Preheating :
ᆞTo prevent cracks on welding area and thermal effect area around welding area.
ᆞTo relieve solidification of the thermal effect area by reducing thermal loss
to delay cooling speed of the welding area.
ᆞTo control segregation of impurities that may result in cracks.
ᆞTo reduce thermal deformation due to welding.
ᆞDe-Hydrogenation Heat Treatment, Abbreviated as D.H.T, or simply heat treatment
(Called as various terms on the field such as Post-Heating, etc.)
- Purpose of De-Hydrogenation Heat Treatment
ᆞTo completely remove residual hydrogens that can not be removed with welding preheating on
the welding area and surroundings.
※ Common Purpose of Preheating and De-Hydrogenation Heat Treatment
To prevent hydrogen cracks such as hydrogen embrittlement, etc. by facilitating release of hydrogens and prevent mixture of hydrogens during welding by previously removing moisture in the base metal on which welding metal is melted.
| Heat Treatment
1.Pre-Heating & Dehydrogen Heat Treatment
Tube Sheet Forging Joint Pre-Heating
GOLIATH CRANE Girder Part’s Pre-Heating
Piping Pre-Heating
Piping Pre-Heating
Tube Sheet Forging Joint Pre-Heating
Pressure Vessel Pre-Heating
Wheel Saft Shirink Pre-Heating
Piping Pre-Heating
| Heat Treatment
2. Post Weld Heat Treatment & Stress Relieving
ᆞKinds and Purposes of Post Heating of Welding
- Kinds :
• Full furnace heat treatment to be applied on the entire product according to the heat treatment method
• Local heat treatment to be applied on a specific area or part of the product
• Full local heat treatment (Gas Firin) to be directly conducted on the site because of unavailable application of full furnace heat treatment or local heat treatment or
size of product, transportation, etc.
- Purpose :
1. To remove residual welding stress on the welding area during welding
2. Stabilization of shape dimension
3. Stabilization of softened structure on the welding effect are
4. Increased destruction toughnes
5. Increased performance against corrosion
6. Improved fatugue strength
Pressure Vessel P.W.H.T
Car Bottom heating Furnace P.W.H.T
① Full Heat Treatment using Furnace
Ventury Tube P.W.H.T Shell Head Stress Relieving
① Full Heat Treatment using Furnace
HRSG Coil Bundle P.W.H.T
Piping P.W.H.T
Rotor Hub P.W.H.T Air Cooled Heat Exchanger P.W.H.T
② Local Heat Treatment
Pressure Vessel P.W.H.T Shell Head Stress Relieving
Heat Exchanger Tube To Tube Sheet P.W.H.T
② Local Heat Treatment
③ Field Full Heat Treatment(Gas Firing)
Pressure Vessel
P.W.H.T
| Normalizing & Steinless Steel Solution Annealing
3. Normalizing & Steinless Steel Solution Annealing
* Purpose of Normalizing & Steinless Steel Solution Annealing
※ Purpose of Normalizing
Steel prismatic system grain refining ,Stress Relieving (internal stress)caused by cold working,
forge welding. Main purpose is Making standardize prismatic system , mechanical property ,
physical property. Let fall brittleness , main steel`s softness and tension would be improved.
Heating up until austenite temperature and keep it. After that cooling in the air.
Heat up over 1,040 ,push in component of alloy, carbohydrate to grain boundary.
Can get normalizing organization.
MHT having lots of experience in this work. Also having batter technology than other competitors.
※ Purpose of Steinless Steel Solution Annealing
Heat treatment apply to austenite stainless steel.
Heat treatment - after welding, forming ,machining Heat up over 1,040 , push in component
of alloy, carbohydrate to grain boundary.
Maintain hardness under HB130 ,improvement of corrosion resistant.
When cooling must avoid senstive part of integranular corrosion.
Fitting(Tee) Normalizing Pipe Normalizing
Solution Annealing (Liquid Nytrogen Gas Cooling Start)
3. Normalizing & Steinless Steel Solution Annealing
Shell head Solution Annealing Cooling Start
Solution Annealing (Liquid Nytrogen Gas Cooling)
U-Tube Solution Annealing
3. Normalizing & Steinless Steel Solution Annealing
| Thermal Equipment for Sale and Equipment Manufacturing
1. Equipment
① POWER REGULATOR
② TEMPERATURE RECORDER
Power Source AC 380V/440V 50/60Hz 2P 44kvaAC 220V 50/60Hz 2P 22kva
Output AC 0~440V/0~100AAC 0~220V/0~100A
Dimension 215(W) × 400(D) × 285(H)
Weight 14kg
InternalTemperatureController
Sensing Range 0 ~ 1200 K’ Type
Control Type ON/OFF
Temp. Controller Model : HY-1000/HY-72D Other
InputTemperature
Protector
Sensing Range 0 ~ 1200 K’ Type
Protector Type 0.5Amp/DC 500mV
Resisting Pressure ADC 750V/1min
Control Type ON/OFF(S.C.R. Phase Control)
External Input Relay Input(ON/OFF)
Safety System Ground Fault(350~900mA)
Cooling System Air Cooling
InsulationResistance
200 Minimum(600V DC Megger Test)Ground Electric Leak(100mA)
OperatingTemperature 0 ~ +45(Without Freezing)
OperatingHumidity 35 ~ 87% RH(No Condensation)
Power Source AC 220V 50/60Hz 2P 65VA
Dimension 335(W) × 400(D) × 395(H)
Weight 35kg
Sensing Range 0 ~ 1200 K’ Type(0~50mV)
Input Protector Under 500mV/Over 300mA
Recording Type Dot Type 12 Point(6 Color)
Chart Speed 12.5, 25, 50, 100/hr
Chart Paper
Operating Temperature 0 ~ +45(Without Freezing)
OperatingHumidity 35 ~ 87% RH(No Condensation)
| Thermal Equipment for Sale and Equipment Manufacturing
1. Ceramic Heating Pad
③ TEMPERATURE PROGRAM CONTROLLER
④ Thermocouple Attachment Unit(T.C Welder)
Power Source AC 220V 50/60Hz 2P 60VA
Output ON/OFF Relay(250V/ 5A)
Dimension 335(W) × 400(D) × 345(H)
Weight 18kg
Sensing Range 0 ~ 1200 K’ Type(0 ~ 50mV)
Control Type Differential Control -50 ~ +50
Input Protector Under 500mV/Over 500mA
Operating Temperature 0 ~ +45(Without Freezing)
OperatingHumidity 35 ~ 87% RH(No Condensation)
Program Setter
Pattern 1
Step 3
Up Rate 0 ~ 999/hr
Keep Rate 0 ~ 999/hr
Keep Temperature 0 ~ 1,200/hr
Keep Time 0 ~ 99.9/hr
Differential Controller
Output Relay Output(AC 250V/ 5A)
Control Scale -50 ~ +50
Analog Output Adjustment Range +2
Indicator Output ON/OFF(Green/Red)
Power Source AC 220V 50/60Hz 60VA
Output DC 0 ~ 50V/Condensor Discharge
Dimension 180(W) × 290(D) × 133(H)
Weight 3kg
Discharge Continuation(50V 기준)
ThermocouplesTypes J, K, R & T
Wire Size 0.23, 0.71, 1.22
Capacity 44000/50V
| Thermal Equipment for Sale and Equipment Manufacturing
2. CERAMIC HEATING PAD
Structure of Ceramic Heating Pad
It consists of ceramic heating pad, ceramic beads and high temperature heat wire and used for pre-/post-heating related to welding.It can be produced in various shapes and sizes in line with complex and diversified forms of heat treated products, has excellent economic efficiency with simple maintenance and repair, as well as excellent thermal conductivity and electrical insulation resistance so that it is widely used for heat treatment works related to welding.
※ 최대 사용 온도 : 1,200
Structure of Ceramic Heating Pad
Dimension Diagram of each kind of Ceremic Beads
A Type
C Type
B Type
D Type
| Thermal Equipment for Sale and Equipment Manufacturing
A TypeMale Bead(Top Bead)
C TypeHole Bead
E TypeTail Bead(Single Bead)
B TypeMain Body Bead
D TypeFemale Bead(Bottom Bead)
F TypeJunction Bead
| Thermal Equipment for Sale and Equipment Manufacturing
3. Heating Element
4. Heat treatment Accessory
High temperature heating wire combining several heating wires has high thermal efficiency and economic efficiency and makes ceramic heating pads of various capacities and shapes in combination with ceramic bead.The heating wires of the ceramic heating pads manufactured by MHT use only high reliable products from Omega in UK.
Heating Element Ceramic Heating Pad
Material Nickel80 /
Resistance 0.281Ω/m
Size 3.3mm(0.381 X 37P) , 500M/Roll
Manufacturer OMEGA(Egland)
Max Operating Temperature 1,150
Max Operating Current 45A
300A Camlock Connector(+)
300A/60A Camlock Sleeve(+) & Pin
60A CamlockConnector(+)
300A Camlock Connector(-)
300A/60A CamlockSleeve(-) & Pin
60A CamlockConnector(-)
① Camlock Connector
② Camlock Sleeve/Pin
| Thermal Equipment for Sale and Equipment Manufacturing
4. Heat treatment Accessory
③ Other Accessory
In-Put Cable Out-Put Cable
WCT 25/35/50/70 SQ WCT 25/35 SQ
2Way Splitter Cable Jump Cable
WCT 16/25 SQ WCT 16/25 SQ
Compensating Cable Thermocouple Wire
0.5/0.75 SQ , K-Type 0.81mm/0.65mm , K-Type
Ceramic Fiber
1300 Blanket 50mm X 3600mm 1300 Blanket 25mm X 7200mm
| Business Action Plan
Always proactive talent recruitment
Regular qualityeducatio
Reserve safety ona constant wear -daily life