Surface Engineering Forum - All Forums

ID Smartarc extension

Sun, 15 Nov 2009 17:11:33 +0000

Hello,

Does anybody got an ID Smartarc extension for sale ?

Ion

Metco601 coating peel off

Sun, 15 Nov 2009 12:57:50 +0000

Hi,Gordon
we had a problem with the coating metco601 ,after turn some coating peel off ,please see attached picture.

I assume it's the problem from machine because they turn 1mm at one time,it's too much,but not all the part the coating gone when they turning like this.

can you suggest what's the problem is ?thanks!

PTA Powder Composition for Cast Iron

Fri, 13 Nov 2009 03:19:54 +0000

Hello everyone,

What is the current recommended powder composition for PTA cladding of Cast Iron?

Application: Bearing journal
Cast Iron: ASTM A48 Grade 45B
- Thickness of cladding: 1 mm after machining
- Hardness requirement: Hardness is secondary to weldability

Sure I would like to use laser cladding, but do not have this equipment available. Component was previously worked with HVOF WC but the coating system failed, because of some bearing issues, now I am going to a welded process.

I have full access and relationship to most major and minor powder suppliers...

Friction and Wear Testing

Thu, 12 Nov 2009 10:08:17 +0000

Hello All,

This is my first post I wondered if anyone out there works or researchers in the field of Tribology. I am started researching the topic and have started using a Plint Tribology TE53 Friction and Wear Tester. This is essentially twin discs rotating or one stationary in contact and using a assess wear.

Anyone with any experience of this field, testing or using this equipment?

Many Thanks

OptiEng.

How do you find employees?

Thu, 05 Nov 2009 13:13:08 +0000

Found this site which helps those who are actively looking for employment and also those who are willing to pay for ones services. This might interest you guys because almost everyone is already involved in freelancing. They offer various kinds of work depending on what suits you.

Spray Rate

Wed, 04 Nov 2009 06:06:11 +0000

Dear Gordon,

Need your help. How can we calculate the spray rate for stellite 6, WCCo/Cr, CrC and others materials?. Can you give me the details or formula to calculate our cost while doing HVOF?

I need to represent it to my bosses.

Kindly advice.

Regards,
Minja

Dating gun barrel with hardness tester? Possible?

Wed, 04 Nov 2009 00:39:09 +0000

Can someone tell me if it is possible to date one firearm barrel from another one of the same type by using a hardness tester? Blueprints and manufacturing info would be available.
Has anyone heard of dating metal by using a hardness tester such as a Rockwell?
Any thoughts?
Your help will be deeply appreciated.
Thank-you,
Larry

Aluminium properties

Tue, 03 Nov 2009 14:43:30 +0000

Hi! I am very new in the material science!

I need to find a relations between grain size an yield stress for aluminum alloys. And what about micro-hardness can I connect it with some macro properties of aluminum alloys?

Coating retention - Molybdenum Oxide

Tue, 03 Nov 2009 09:52:16 +0000

I am trying to source a technique or already proven solution for the retention of Sputtered Molybdenum oxide for use in a photovoltaic vacuum process. Currently the shielding does not retain the coating after approximately 1hour of coating due to the build up and inherent stress of the oxide coating. This is falling back on the magnetron and causing short circuits.
The source is depositing at approximately 100nm/min , and we need to operate for approximately 8hours.
I have tried bead balsting and also fine mesh and both will retian molybdenum however will not retain MoOx. I have been informed that Thermal flame spray may be a suitable technique.
Does anyone have any suggestions/reccomndations of this or any other surface techniques that may assisit in coating retention?

extra HC Starck powder

Mon, 02 Nov 2009 20:02:30 +0000

Here is a list of what is available. The numbers to the right are the amount in pounds that are available.

Shoot me an email with what you need and the price you currently pay.

Amperit 421.1 NiCoCrAlTaReY gas atomized # 319
Amperit 717.074 Cr203TiO2SiO2 60
AMPERIT® 207.421 Ni-C 85/15 630
Amperit® 281.090 Ni Al 95-5 Prealloyed 485
Amperit® 286.441 Ni Al 80-20 675
Amperit® 299.6 Ni Cr (80-20)-Al 95-5 320
Amperit® 377.946 316L SS Gas Atomized 40
Amperit® 415.090, Co-Ni-Cr-Al-Y, gas-ato 25
AMPERIT® 415.288/415.001 CoNiCrAlY atomi 30
Amperit® 418.090 M-Cr-Al-Y 150
Amperit® 428.090 NiCoCrAlReY atomized 130
Amperit® 515.401 WC Co 88/12 120
Amperit® 519.090, WC-Co, -90 +45 my 190
Amperit® 526.077 WC-Co AG 5KG(P2,5A)K35 25
Amperit® 526.727 WC Co 83/17 50
AMPERIT® 527.059 WC-Co 83-17 AGGLOMERATE 132
Amperit® 544.3, WC-Ni 83-17,dense-coated 192
AMPERIT® 550.054 WSC-Ni 70/30 -45 +10 um 66
Amperit® 551.088 WC-CrC-Ni 73/20/7 aggl. 462
Amperit® 553.074 WC Co Cr 86-10-4 Sint. 132
Amperit® 583.054 Cr3C2-Ni 83-17, -45 +10 100
Amperit® 583.054 Cr3C2-Ni 83-17, -45 +10 60
AMPERIT® 594.074 Cr3C2-CoNiCrAlY 75/25 A 110
Amperit® 704.0 Cr2O3 Fused -22.5 +5.6 MY 2,340
AMPERIT® 712.053 Cr203-Ti02 75/25 fused, 190
AMPERIT®261.090CrAl 56/44atomized,45/5um 340
AMPERIT®526.455 WC-Co 83/17 perPWA3633-2 50
Amperit®527.074 WC-Co83/17ag sint -45+15 892
Amperit®527.088 WC-Co 83/17ag sint-53+20 100
AMPERWELD CrB2Ni 300
AMPERWELD CrB2Ni 100
Amperweld® 1700.39 Chromium Carbide CrC 600
Amperweld® 1700.39 Chromium Carbide CrC 170
Amperweld® Cast Tungsten Carbide -250 5
AMPERWELD®MacrolineTungsten Carbide+NiSF 680
CARPENTER CM 186 NiReHf ALLOY 4,100

Sealer for ceramic coatings

Mon, 02 Nov 2009 12:23:46 +0000

Hi Everyone,

Does anybody here have any information about the sealers used for Corona treater rolls.

The rolls need ceramic coatings but for the roll to be functional, it should have negligible porosity and very high surface finish. To facilitate this, the rolls are coated with a sealer.

I want to know what type of sealers are available for this particular application. Any input in this matter is highly appreciated.

Regards

K09

process for spraying Aluminum

Fri, 30 Oct 2009 01:55:01 +0000

Hello all,
First post and I am extremely happy to find this forum. I have no idea what so ever about and of the processes exibited and discussed in this forum but I would like to buy a reasonable system to coat aluminum pressure rings for a use in an automotive pressure plate in a clutch system. This would be the portion of the plate the rides against the clutch disc be it organic or sintered. This has been done in Europe with success and has been abandoned of late. Any suggestions regarding process and coating material would be greatly appreciated.

Regards AM

Ridery ceramic coating

Wed, 28 Oct 2009 05:59:49 +0000

We're specialized in ceramic coating technology.Our company obtain serveral Chinese invention patents.Our products and technology are widely used. Especially,we can make composite ceramic coating on stainless steel inner wall whose length is 5000mm , diameter 20-500mm, and also on 0.15-0.318mm stalloy.The workpiece processed by our composite ceramic coating has very high wear-resisting capacity (HV 850-1300) and high temperature resisting capacity(880℃).It can greatly improve service life of workpiece,about 2-10 times than before.Our ceramic coating doctor blade have been used by clients from 18 countries and they give us good response.

"HELP ME" NEED ELECTRIC DRIVE UNIT.

Tue, 27 Oct 2009 23:21:38 +0000

"HELP ME" LOOKING FOR ELECTRIC DRIVE TWIN WIRE FEED UNIT, TO SUIT METALLISATION ARCSPRAY PUSH PULL SYSTEM.[/font][/b]

additives for HVOF powders

Mon, 26 Oct 2009 08:25:20 +0000

Dear Sirs!

The firm A.Termika Ltd. (Israel) tenders you additives DWC6410-H

and DWC12410-F to thermal spray powders on base WC+Co+(Cr)

for deposition of wear-resistance coatings .

Our additives augment a wear-resistance of coatings such as

WC+Co+(Cr) and go on at 8-10 of time (attach). Additives are intended for

deposition of coatings by a method HVOF (mark H) and method FS

(mark F).

Additives is let out as a powder and is blended with the main

powders WC+Co+(Cr).

It is enough of one kilogram of the additive for cooking 10

kilograms of a powder .And the received mix on a wear resistance

of coatings will be equivalent 80-100 kilograms of a customary

powders such as WC+Co+(Cr). The additives are tested with

different powders type WC+Co+(Cr) of several corporations

from Holland, China, USA and Russian.Additives DWC6410-H

and DWC12610-F deliver in plastic bottles on 2.5 and 5 lbs.

To book additives and to receive more in-depth information it is
possible through:
E-Mail: boris_iz@zahav.net.il or tel.:+972-4-8211301,+972-547477909.
Skype addres:a.termika
Our site : http://www.wix.com/atermika/ATermika-Ltd

Best Regards

Dr.Boris A.Eizner,

Director