Product Specifications
Product Description
Along with development of modern iron and steel industry, the quick detection for the inner quality of the continuous billet casting becomes more and more important. The low-multiple structure acid corrosion inspection technique for steel is through acid corrosion on the specimen surface of the steels to determine if the interior of the steel has various non-continuous structure and defects such as inner cracking, skin lamination, looseness, fish eye, inclusion etc. Based on inspection results, the continuous billet casting technological parameters can be timely regulated and optimized, to improve the quality of the steels.
At present, most of the steel pants adopt hot acid erosion method to conduct low multiple structural detection for steel. This method has overlaborate operations and high operating cost, and needs to put the whole specimen into a high concentration hydrochloric acid, therefore it is very easy to generate danger. The typical method for adopting hot acid erosion is to heat up 1:1 hydrochloric acid solution to 70~80∩, the whole specimen is put into the acid tank, erosion is about 20~60 minutes, the outer surface of the whole specimen is eroded away 0.05~0.13 mm, then the inspection is conducted. Because the whole specimen is put into the hole hydrochloric acid, this method is extremely easy to result in the hydrochloric acid to splash out, meanwhile a great amount of "acid smoke" emitted in the hot acid erosion process is also harmful to the health of the operator.
In order to overcome mentioned above shortcomings in the hot acid erosion method, Hatch Steltech Company has developed a fully automatic electrolytic corrosion machine. This machine cannot only conduct low-multiple structure and defection for steel specimen, meanwhile but also it can complete or replace the "sulphur trace" detection used widely in the steel quality detection.
Technological Process
Hatch Steltech fully automatic electrolytic corrosion machine uses cold thin hydrochloric acid and uses the elect corrosion method to conduct erosion on the detected surface of the steel specimen. When operating, the erosion face of the steel specimen is only needed to lay down on an automatic removable stand, the acid erosion, cleaning and drying work on the steel specimen can be completed in proper order.
Hatch Steltech fully automatic corrosion machine utilizes a computer to conduct process control. It can not only automatically complete the steel specimen clamping, starting-up acid liquid pump, electrode energizing, flow rate safety control etc functions, but also it can also accurately control the treatment time for each link so as to assure the consistency of the detection results. The acid liquid circularly used by the electrolytic corrosion machine is stored in a built-in storing acid tank, the acid liquid for each tank can approximately erode several hundred specimens, then the waste liquid is drained and new acid liquid is filled.
The steel specimen will form a blank glue layer with about 0.0345 mm thick on the erosion face of the specimen through electrochemical reaction when the steel specimen conduct acid erosion, then the glue layer will be washed off through roller brushing and cleaning operation, and the specimen enters into the drying working position for drying. Finally the detection and evaluation for the low multiple structure and defect of the steel specimen can be conducted.
The detection method adopted by Hatch Steltech fully automatic electrolytic acid erosion machine meets the requirements in national standard GB 226-91 "Acid Erosion Inspection Method for Low Multiple Structure and Defect for Steel".
Advantage of the electrolytic corrosion machine
Improving detection efficiency
Hatch Steltech fully automatic electrolytic corrosion machine can realize accurate control for the steel specimen detection process, therefore, compared than traditional detection method, the precision and repeatability of the detection results can be greatly improved.
·It does not need to conduct heating up for the steel specimen and the acid liquid.
·Acid erosion time is only about 1/10 of that for traditional hot acid erosion method.
·The demand amount and consumption of the acid liquid are only 1/10 of those for traditional hot acid erosion method.
·The generation and emission of "acid smoke" are greatly reduced.
·The acid liquid can be normally used in the range 10~40∩.
·With computer automatic control, it can reduce manual work amount.
·It can utilize replaceable clamps, meanwhile it can conduct detection for more steel specimens.
Good environmental protection and safe reliability
·The acid liquid consumption amount is reduced by 90%, the amplitude of reduction for "acid smoke" emission is greater.
·The acid erosion process is automatically completed on the corrosion machine so as to avoid acid liquid splash danger.
·Acid erosion is conducted on one face of the steel specimen so that reduces generation of H2 gas and avoids explosion danger.
·Before manual taking the specimen, the residual acid liquid on the steel specimen surface can be automatically cleaned .
Saving investment and cost
·Save "acid smoke" collection and discharge system investment.
· It does not need to conduct wet method washing for the "acid smoke". The generated acid smoke can be directly exhausted to outdoor.
·It reduces manual cost.
·It reduces consumption of the acid liquid.
·It reduces the investment for more detection system.
The steel billet low multiple structures observed after erosion through Hatch Steltech automatic corrosion machine
Fig. 1 Continuous small square billet casting once crystal structure
Fig. 2 Eroded continuous small square billet casting cross-section low multiple structure after cut by band saw.
Fig. 3 í 350 mm continuous round billet casting cross-section low multiple structure
Fig. 4 Continuous small square billet casting longitudinal-section low multiple structure
Hatch Steltech company can provide design for metallurgical detection laboratory and various needed detection equipment for steel plant. The fully automatic electrolytic corrosion machine from Hatch Steltech Company has been widely adopted by the steel plants of various countries all over the world.
The service provided by Hatch Steltech Co. includes: laboratory general drawing arrangement scheme, laboratory design, laboratory whole complete equipment supply, installation, adjustment equipment maintenance and operator training etc.
The purpose of Hatch Steltech fully automatic electrolytic corrosion machine is wide used for internal quality detection for various shape and dimension continuous billet castings and steels such as plate blank big square billet, small square billet, round billet, rail steel beam, special-shaped billet and continuous thin plate billet casting etc.
If you want to understand Hatch Steltech fully automatic corrosion machine and Hatch Steltech other iron and steel technical information, contact with us.
Miliscorp Industry Ltd established in 2009, locates in the North East center city Shenyang, near Beijing and Dalian port. Through years' development, it grows a diversification corporation, the head office covers a tower cranes production company, construction equipment rental company and commerce company.
"To be practical personality, to do serious business" is the orientation of the company. We execute concise and humanized system, together with our high qualified engineer's team, we are building our own MC cost performance brand, and continuously creating customer values; Promote company brand value, and self target values.
TOWER CRANES Characteristics:
Strong steel structure and waterproof capacity;
Long lifetime and Reliable mechanism;
Easy installation and dismantle;
Convenient maintenance;
Comfortable A/C cabin;
Spare parts stock and timely delivery;
Guide and training for driver, installation and dismantle
Service
Timely delivery, standby engineers are ready to solve your any problem
All-embraced warranty of products quality, 7 days guidance for installation
Ample spare parts and training of operation and maintenances
Engineers have more than 10 year's experiences in tower cranes
