Dura-Plate is a thin dense chromium applied directly to a basis metal under rigid quality controls

DURA-PLATE
Revised: January 9, 2006

Dura-Plate, offered by TechPlate, Inc., is a thin dense chromium alloy deposit applied directly to the basis metal in accordance with AMS 2438 & QQ-C-320 Type II Class 2 under rigid quality controls to produce an amazing wear and corrosion-resistant surface.

INDUSTRIAL APPLICATIONS CONCLUSIVELY PROVE THAT SURFACES TREATED WITH DURA-PLATE DEPOSITS OF .0002" MAX THICKNESS ARE HARDER AND HAVE SUPERIOR ANTI-FRICTION, ANTI-CORROSION AND INCREASED LUBRICITY PROPERTIES THAN PARTS NOT.

PARAMETER

DURA-PLATE PROPERTIES

ADHESION:

Dura-Plate will not chip, flake, crack, peel or separate from the base material under standard ASTM bend tests or under conditions of extreme heat or cold. Dura-Plate is compatible with both ferrous and non-ferrous metals, allows maximum design selection of base materials.

HARDNESS:

Dura-Plate has an equivalent hardness of 68-70 Rc when deposited. Measured by conventional micro hardness methods, the host material will modify this measurement to some small degree. Vickers Diamond measurements produce a 1020-1100 hardness rating.

FRICTION
PROPERTIES:
(notice benefits of Dura-Plate against Dura-Plate)

MATERIAL AGAINST MATERIAL		STATIC	SLIDING
Steel	Steel	0.30	0.20
Steel	Babbit	0.25	0.20
Steel	Dura-Plate	0.17	0.15
Babbit	Dura-Plate	0.15	0.13
Dura-Plate	Dura-Plate	0.14	0.12

CONFORMITY:

Dura-Plate conforms to the base metal surface. All threads, flutes, even scratches are reproduced in detail. RMS finish will improve slightly, to a low of about 8 RMS. Below 4 RMS the process may deter slightly. Internal and external surfaces on nearly all shapes and configurations processed. In general, slots or grooves less than .187 wide, having a depth greater than width, and bores less than .187 in diameter may not be uniformly processed (Such parts should be submitted for test runs). The finished Dura-Plate coated surface will have excellent lubricity properties.

THICKNESS:

Dura-Plate coating will range from .000010" to .0006" per side. Normal proven average deposits are in the .0001" to .0002" per side range. Tolerances can be held to +/- .000025" on deposits up to .0002" per side. The Dura-Plate creates minimum "edge build-up". Dura-Plate thickness is always in direct relation to the base metal, and will vary from one base metal to another. However, thickness established for each will remain constant and predictable.

EFFECT ON
BASE METAL:

Dura-Plate will not significantly affect the tensile, yield or fatigue properties of the base material. It will not affect a growth of more than .0002" per side under normal conditions, eliminating the need to undersize designs in most applications.

HYDROGEN
EMBRITTLEMENT:

Dura-Plate processing and pre-process surface preparation minimize the embrittlement phenomenon from occurring. All parts are post-plate baked.

CORROSION
RESISTANCE:

Dura-Plate resists attack by most organic and inorganic compounds (except sulfuric and hydrochloric acids). Porosity of base metals and imperfect surface finishes can affect the corrosion-resistant properties of Dura-Plate. However, all base materials that are Dura-Plate coated will be enhanced.

HEAT
RESISTANCE:

Dura-Plate will withstand temperatures of -400°F to 1800° F. At elevated temperatures above 1600°F it will react with carbon monoxide, sulfur vapor and phosphorus. At bright red heat oxidation occurs in steam or alkali hydroxide atmospheres. Hardness and wear resistance will be reduced significantly at temperatures above 1600°F.

SAFETY:

Dura-Plate is FDA/USDA approved for use, without concern, on food processing equipment.

AESTHETICS:

Dura-Plate is used as the final coating on parts and equipment, imparting a beautiful satiny silver "mat" or "micro-orange peel" finish.

SUBMISSION:

Parts to be Dura-Plate processed should be submitted with a drawing indicating the surface requiring Dura-Plate and areas not to be processed. Masking is generally not required. Material designation of the part should be specified. Internal as well as external areas can be readily processed.

FINISHING:

Parts should be surface finished prior to shipment to Dura-Plate. Removal of paint, scale, rust or corrosion, by Dura-Plate will result in extra charges. Surfaces will not be changed significantly in configuration by the Dura-Plate process. Dura-Plate will not fill scratches, pits, or dents, but will conform to such imperfections. Removal of oil, grease or protective covering that does not adhere will be done by Dura-Plate at no expense to the customer, except in cases of excessive applications.

SHIPMENT
TO TECHPLATE:

All parts should be properly wrapped and preserved in order to protect against damage and/or corrosion and then shipped in suitable containers to give maximum protection, both prior to and after the Dura-Plate process. Hand-carried parts will be paper wrapped or bagged prior to delivery.

PRICE:

The price of Dura-Plate processing is determined by the configuration and surface area of the part. Cost estimates can be obtained from detailed drawing and actual prices determined by processing of test parts.
Minimum Charge is $100.00.

TESTING:

Sample test parts will be processed by TechPlate for a minimum charge. Test samples should be submitted with detailed drawings or a letter illustrating the critical areas where Dura-Plate is to be applied.

Dura-Plate is used across a variety of industries and for a multitude of purposes.
With the Dura-Plate coating:

Bearings and bearing surfaces can run longer and cooler and are comparable to a 440C S.S. for corrosion protection.
Plastics molds have better release characteristics and reduced die wear when molding abrasive materials.
Cutting tools experience longer wear life.
Nuclear components exhibit better anti galling and corrosion resistance problems.
Dies used in stamping, drawing, forming and blanking have sharper cuts and increases in work life.
Engine and transmission parts such as valves, valve guides, pistons, gears and splines are protected without detrimental tolerance changes or variations.
Standard built pumps and meters handle corrosive liquids and materials.

PROVEN APPLICATIONS OF DURA-PLATE INCLUDE
ATOMIC INDUSTRY: Valves, Control Rods, Fittings, Shafts, Pump Parts BEARING SURFACES: Steel, Brass, Cast Iron, Mehanite, Bronze BUSHINGS: Stainless Steel, Monel, Brass, Powdered Metal, Steel, Cast Iron CAMERA PARTS: Shutters, Pins, Bushings, Actuators CAM SHAFTS: Auto, Industrial Engines and Machines CHAINS: Roller, Maliable, Drive, Conveyor, Lifting CLUTCHES: Oil Field, Industrial, Air Operated, Water Cooled COMPUTERS: Shafts, Pins, Sprockets COMPRESSORS: Cylinders, Wrist Pins, Pistons, Rods CUTTERS: Broaches, Thread, Milling, Roll, Taps, Trim Dies, Hobs CYLINDERS: Air, Hydraulic, Water DATA PROCESSING EQUIPMENT: Bearings, Slides, Bushings, Shafts, Bases, Control Parts DIE CAST: Molds, Slides DOWN HOLE OIL EQUIPMENT: Magnetic Spools, Electronic Equipment, Logging Equipment, Shooting and Drilling Equipment, Wash Pipes, Operating Cylinders, Operation Pistons and Shafts, Clutch Plates, Pumps, Gears DRIVE TRANSMISSIONS: All Internal Moving Components, Bearing Surfaces, Splines	ENGINES: Sleeves, Piston Rings, Cam Shafts, Valves, Valve Guides, Timing Gears FOOD PROCESS EQUIPMENT: slides, Seal Bars, Knives, Hoppers, Brackets, Gears, Shafts FIREARMS: Pistols, Revolvers, Rifles FORGE DIES : Hammer Dies, Punches (Pierce and Extruding), Shear Blades, Keys GAUGES: Plug, Ring, Thread, Go No-Go GEARS AND SPROCKETS: Brass, Steel, Cast Iron, Mehanites, Powered Metal, High Precision, Ultra High Precision HYDRAULIC: Valves, Spools, Cylinders, Rams Rods, Pistons IMPELLERS: Oil, Water, Air INSTRUMENTS: Measuring, Oil Well shooting, Logging, Flowing and Metering JACKS: Screw, Hydraulic JOINTS: Ball, Swivel, Universal, Slip KNIVES & SAWS: Wood Chipper, wood Lathe, Paper Cutting and Chopping LATHES: Feed Screws, Vernier Feed, Ways LINERS: Engine, Mud, Water and Dredge Pump Shafts MACHINE TOOLS: Ways, Dials, Feed Screws, Handles, Spline Shafts MOLDS: Rubber, Plastic Injection, Plastic Forming, Die Casting	MACHINES: Guides, Rolls, Gears, Slides PISTON RINGS: Cast Iron, Mehanite, Brass, All Applications PISTON RODS: All Metals, All Sizes, All Shapes, All Applications PNEUMATIC PERCUSSION TOOLS: Cylinder Barrel, Piston Hammer, Piston Guide, Thread Areas POWER TRANSMISSION SYSTEMS: Chains, Sprockets, Automotive and Industrial Gears, Ultra-High Precision PUMPS: Air, Fuel, Hydraulic, Water, Dredge RINGS: Pistons, Sealing, Special ROLLERS: Conveyor, Chain, Paper, Mill, Printing Press SCREWS: Acme, Fine Thread, Lead, Feed, Plastic Feed SLEEVES: Pump Shafts, Pump Liners, Engine Compressor Liners TEST EQUIPMENT: Air, Hydraulic, Electronic, Mechanical TEXTILE INDUSTRY: Bobbins, Bases, Feed Dogs, Pressure Plates, Cams, Thread Guides, Shafts, Rolls, Thread Wear Parts, Needles THREADED PARTS: Gauges, Shafting, Threads VALVES: Oil, Air, Hydraulic, Steam, Gate, Globe, Butterfly, Stainless Steel, L-P Gases, Anhydrous Ammonia VALVES ENGINE: Guides, Stems, Tappets, Complete Valve

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TechPlate, Inc.
1571-H S. Sunkist St. Anaheim, CA 92806
Tel: 714.634.9254 - Fax: 714.634.9382
E-mail: @techplate.com
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