KST Plant. Co. Ltd. Surface treatment for Plant Industry. Rearch Company with Korean Government (Korea. Institute of Industrial Technology) Funding

Size: px
Start display at page:

Download "KST Plant. Co. Ltd. Surface treatment for Plant Industry. Rearch Company with Korean Government (Korea. Institute of Industrial Technology) Funding"

Transcription

1 Surface treatment for Plant Industry KST Plant. Co. Ltd Rearch Company with Korean Government (Korea 1 Institute of Industrial Technology) Funding

2 Contents 1 Introduction 2 Main Techonologues Ⅰ 3 Patent Certificates 4 Certificates 5 Techonology Features 6 Facilities 2

3 1. Introduction Company name : Ceo Jo Choonja Address : , Gomo-ro 180beon-gil, Jillye-myeon, Gimhae-si, Gyeongnam, 50875, Korea Tel) , Fax) Co. Reg. No. : Corporation Reg. No. : 케이애스티플랜트 : Main products : Power Plant Parts (Chute Liner, High Temp. & Pressure Valve, Coal Ash Processing Parts Offshore Plant Parts (metal Seated ball Valve, Piping Lines) Main Customers : All 5 Power Plants Co. of korea 3

4 2. Main Technologies High temperature stability Good surface roughness unnecessary Improvement of the properties of post process corrosion resistance, chemical resistance Control of case depth, wear resistance High hardness (above Hv1500), low friction coefficient and hardness of samples Produce at low temperature Main technologies Hybrid surface treament Plasma nano-nitriding Principle diffusion from metal raw materials into the surface of products Features High temperature corrosion resistance and good thermal stress and wear resistance Products - Slurry Pump Impeller, Ball Valve, Pipe, Chute Liner, kinds of valves, and etc. Principle Formation of nano-nitride on the surface of the samples with nitrogen ions(n + ) from high density low voltage plasma Features Formation of mirror face nitride layer without compound layer at low temperature Products Steam Drain Control Valve, Valve Steam Disc, Temp. Control Valve Internal, and etc. 4

5 3. Patent Certificates : Structure of the chute liners Conveyor consisted of transportation of coal for thermal power Plants (Chute Liner) and installation methods : Equipment for making hybrid coating technique of slurry pump parts and operating techniques : The brush seal manufacturing method and the Jig & Fixtures with them : The plasma nitriding method with apparatus according to the low-current-density : Surface treatment method using with surface treatment and coating simultaneously processing equipment : Boron-Nitriding treatment of Steels and produsts by Boron-Nitriding treatment processing : Boron-Nitriding treatments for high wearresistance and hardness 5

6 4. Certificates 6

7 5-1. Technology Features (hybrid surface treatment) Hybrid surface treatment company and facilities development Metal-halide gas diffuses on the low cost forming steel surface in the furnace and chemical reaction is induced. Feature The process of 3-dimensional surface treatments of the metal and carbide with low costs (Hardness : Hv 1500~2300) Acid and wear resistance High Properties with low cost metals Principle The formation of metal-halide gas by the reaction between the metal powder and active gas In-situ CVD of a kind of three-dimensional coating system A kind of three-dimensional coating technology, In-situ CVD(chemical vapor deposition),to cause regular diffusion reaction on hole or surface treatments products Active gas compound Active gas Hybrid surface treatment parameter 7

8 5-2. Technology Features (hybrid surface treatment) Development products Chute Liner Ball valve Impeller for Slurry pump and piping Application to the product for osed environment with wear and corrosion Various valves Hybrid surface treatment Product function and reliability improvement (Improvement of the properties with high hardness, wear resistance and corrosion resistance) quick delivery service and cost cutting (more enhanced life time than old products) Localization possible of stability and rapid response 8

9 5-3. Technology Features (plasma nano-nitriding) Surface treatment that activated nitrogen ions with high density low energy by hollow cathode effect adsorb and diffuse into a sample Feature Unnecessary of pre and post process Hardly dimension and shape deformation after treatment Hv 280 Min. Hv 1200 friction co-efficient; Max. 0.4 (different value according to the materials ) High hardness and good wear resistance No arcing and edge effect/a smooth surface Control the case depth Low temperature treatment Species Before (Hv) After (Hv) S45C ~900 SKD ~1200 STS ~1300 Various valves Shaft Sleeves 9

10 6. Facilities Hybrid surface treatment equipment Plasma heat treatment and CVD(surface treatment) Micro Vickers Hardness Tester Dimension: Ø900 x H1000 Weight: 1,500kg/ charge Temperature: 1000 Vacuum system Wear Tester Wire fatigue testing machine 10

11 11