Why H2SO4 adding to HCl after recycling of HCl from used HCl on the production line?

There is a recycling system for HCl which is used on the steel descaling on production line. When you get fresh HCl after recycling, you have to add some H2SO4 for react to steel again. I need to...

08 September 2017 5,809 0 View

How can I find the accredited laboratories in Europe? Is there any search engine?

I am trying to find any accrediated laboratory for the "Low Relaxation Testing according to ASTM A 416" in Europe. Anybody help?

04 May 2017 1,742 1 View

Where can I find SEM photos of Cold formed austenitic stainless steel?

Where can I find SEM photos of Cold formed austenitic stainless steel?

07 August 2016 6,992 2 View

I am trying to find ECOVER coatings process. Anybody know?

Some company has a process of "Heavy Galvanise+ECOVER" coating. I need to to what is ECOVER. Anybody know details about it?

07 August 2016 4,775 0 View

Which parts of automobile are made from steel wire (for ex. shock absorber spring etc.) ?

We are producing steel wire. I am trying to find automobile parts which made from steel wires so I can focus on them. Anybody have information?

05 June 2016 6,350 0 View

Is there any publishment of microstructure, formation and etc. for Galfan coating (%95Zn-%5Al)?

I am working on Galfan coating and I need some of information for phase evaulation between steel and Galfan coating with microstructure photos. Anybody help?

05 June 2016 1,338 2 View

How does the second oxide scale occur on the steel?

I saw the blue color on the steel surface. some people call that "blue rust" but I think it is second oxide scale. How the second oxide scale occur on steel? How can I avoid it?

11 December 2015 5,142 4 View

How to get different colored zinc oxide ?

I am trying to get different colour of zinc oxide. It can be with chemical solution or any other process. Anybody have an idea?

10 November 2015 5,245 0 View

What is chemical reactions in hot dip GALFAN(%95Zn-%5Al) coating?Also,what is effect of aluminum in the %95 Zn-%5 Al coating?

Your toughest technical questions will likely get answered within 48 hours on ResearchGate, the professional network for scientists.

07 August 2015 8,946 0 View

Does anybody know which metal not have reaction with Zinc?

Anybody knows which metals doesn't have reaction with Zinc?

07 August 2015 3,218 1 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View