i am son bong-hyeon, the representative director of · pdf filei am son bong-hyeon, the...

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

| Organization Chart

| Patent and Certificate

< ISO 9001:2008> < ISO 14001:2004> < ISO 18001:2007>

| Patent and Certificate

| Gunsan Facility Block Plan

<특허증> <한국가스안전공사 인증서>

| 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　


1 2014 MJ-CF50 Korea

3

Electric

Heating

Furnace

heat source : electrical resistance

maximum temperature : 1,100


2 2013 MJ-EF-01,02 Korea

4

Electric

Heating

Furnace




1 2013 MJ-EF-03 Korea

5

Electric

Heating

Furnace





6

Electric

Heating

Furnace





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


• 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


• 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

③ Field Full Heat Treatment(Gas Firing)

Ball Tank P.W.H.T

Boot Shell Part’s 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)


Shell head Solution Annealing Cooling Start

Solution Annealing (Liquid Nytrogen Gas Cooling)

U-Tube 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)



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)


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


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


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


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


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

| Creation and maintenance by heat treatment

1. Fabricated as carriage type heat treatment

| Creation and maintenance by heat treatment

1. Fabrication and repairing of electric furnace

| Business Action Plan

Always proactive talent recruitment

Regular qualityeducatio

Reserve safety ona constant wear -daily life

Myungjin Heat-Treatment,Inc.

Keep basic regulation!

i am son bong-hyeon, the representative director of · pdf filei am son bong-hyeon, the...

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