Repair of threaded holes
It happens that the thread is damaged by disassembling the blocked bolt. In most cases, it is relatively easy to recover the full functionality of the connection. The approach to repair depends on many factors: location, degree of damage, size, weldability of the material, etc. Apart from the cost and time of reconstruction, all these factors must be taken into account when choosing the method of repair. We have recently been asked to reproduce the functionality of a threaded hole in the steam turbine body. In order to avoid mistakes in the future, the customer decided to keep the current thread size – hence the sleeve was selected as the optimal time and cost in the current situation. We remind you that restoring calls is one of our key service products, and supporting our own production of fasteners, including advanced design solutions, allows us to adjust the optimal solution in every situation. https://wwtech.com.pl/en/2019/02/06/production-of-fasteners-and-spare-parts/
Working On Special Ship
The shipbuilding industry in Poland does not look as bad as it is commonly thought. Polish private shipyards, in particular, build more and more complex ships, adding more and more added value, competing as well as cooperating with global giants such as Scandinavian ones. We have recently participated, of course adequately to the nature of our activity, in the construction of a crucial piece of specialist equipment for the ship for laying undersea pipelines. This is a giant spool, used for transporting and laying a prefabricated pipeline (or, for example, an energy cable or optical fiber), which is simply wound on it. The spool is several meters in diameter and, of course, the surfaces to be treated. With these dimensions the diameter of the processed ring is over 10 meters. Achieving a total flatness of less than 1 mm and high surface quality is not easy and only possible if the appropriate rigidity of the machine is achieved and the cutting speed is optimally selected: peripheral and rotary milling cutter. Roll in assembly position on the ship.
How important are the foundations, you do not have to convince anyone. Especially if they are foundations on which complicated devices and machines will be placed. It is important that the pressure resulting from the weight of the seated structure is evenly distributed – to achieve this, bearing surfaces – foundation slabs – must meet structural requirements such as the mutual position of individual panels – determined by the permissible deviation of the relative height (max 1 mm) and maintaining the level and flatness of each foundation slab (max. ± 0.05 mm / m). The following are examples of foundation slabs (milling of large planes) and completed plate with measurements documenting the achievement of the appropriate surface parameters.
Hydropower Plant Murkraftwerke Graz
In March 2017, ANDRITZ HYDRO begins supplying electromechanical equipment for a new hydro plant in the heart of Graz, the capital of the Austrian province of Styria. The start-up of the power plant is planned for the first half of 2019. Before the construction is completed, it is necessary to install the power plant equipment: turbines, generators, flaps, various types of drives and control systems. And here is the place for our services. Of course, as in a hydroelectric power plant, the main task is to process large-size flanges. It is a very avant-garde design, which can be seen in the following visualizations: More about the plant: The current state indicates that there is still a lot to be done. As usual, the work begins with accurate measurements. In the foreground, the measurement head of the Laser Tracker device, and the measured object deep in the background, behind the scaffolding. Initial setup of the machine at the workplace. Centering the machine using Laser Tracker. View from the top Machine ready During machining… Finished. Time to change the configuration – to process a larger flange in the same mounting Continued processing. This time the outer collar Time for a change, we move to a new processing place. Re-installation of the machine. As usual, under the supervision of Laser Tracker ™. Ready. Machine tool ready to work. Already during the treatment, it turned out that the surface damages of the workpiece are too deep. The customer decides to fill the cavities with padding. Here is the result. We continue processing Finished. Now a short rest and then the same next – on block 2. Note: the above photojournalism does not contain a description of the complete sequence of activities but only selected stages of work. All activities were performed in accordance with health and safety regulations.
The workshop metrology
Well-made measurements – quickly, accurately, repetitively – are a necessary condition of successful project. Two things are necessary for this: appropriate measuring equipment; trained and experienced staff. The measuring equipment must meet a number of requirements related to the nature of the work: most often there are remote measurement, resistance to humidity, dustiness and temperature changes. These requirements are met by Laser Tracker ™, which we use in our work. The measurements can be systematized as follows: For the needs of mobile machining: Before machining: initial dimensions and dimensional analysis – determination of allowances, determination of axes and theoretical points, marking out; During machining: dimensional inspection, necessary adjustments, forecasting of work progress; After processing: final dimensions, reporting; Metrological assistance: The service consists in performing measurements for disassembly and assembly works, including mobile machining; Assistance may cover the whole period of activities on the site; The result is ad hoc reports and recommendations as well as a final report. Standalone measurement: Standalone measurement of indicated dimensions, which results in a measurement report or geometry mapping of the object in the form of a CAD model. More about this subject on our website: https://wwtech.com.pl/en/metrology/ Pomiary można też zobaczyć w naszym filmie: Examples of laser measurements, recently performed for the needs of large-size machining:
Heat exchanger in chemical plant
Chemical Industry is very demanding customers. We are therefore glad that we are often chosen to carry out mobile machining services on elements of chemical installations. In this case, it was a heat exchanger on which we made three treatments: facing the face of the flange connection of the bottom of the heat exchanger and planning the face of the outlets together with machining the groove for the RTJ type seal (RT). While flanges planning is typical, routine work, the groove for the steel seal is a challenge – the requirements for dimensional accuracy and surface quality are much stricter than for other treatments. Confirmation of the right parameters of the groove is “blue print check”. The machining of the outlet flange with a trapezoidal groove for the steel gasket. Starring: Climax FF6200 lathe for the flanges. The machining of the outlet flange with a trapezoidal groove for the steel gasket. On the left side, finished – flange ready . The blue perimeter strip is the mark of the blue print check. Flange on the right during machining. Machining of the bottom of the exchanger – the same machine can handle a wide range of diameters: 508 to more than 1270 mm (20 – 50″) More information about the equipment and machining of flanges: https://wwtech.com.pl/en/on-site-machining/boring-and-turning-using-portable-machinery/machining-of-flanges/ More information about flange facer FF6200:
Fully functional equipment is fundamental to company’s success. Every machine has precision elements, bearings and number of other parts, that enable its efficient operation. Those main elements, which ensure correct machine operation require specific solutions in case of a breakdown. Leaks, cracks and grooves are issues that have to be eliminated to ensure proper operation.
An industrial metrology
WWTECH Company provides its clients with a complex way of problems resolving, offering them three-dimensional coordinate measurements and a full 3D documentation. Due to accurate measuring devices FARO (Laser Tracker, Measuring Arm) WWTECH makes it is possible to carry out uniquely accurate, fast and non-contact measurements, results of which can be analyzed in a real time.
In all undertaken activities WWTECH gives priority to the safety. Our staff’s and the society’s health, respect for the environment are the factors which determine a whole tam activities, a place and other aspects of our work, such as transportation or cooperation with a third party.
They benefited from our services
If u have questions contact us
Our manager contact with you today.
The form was successfuly sent!
The validation of the form was not successful!
There was an error sending the form, try again later or contact your system administrator.