Part of the cold rolling line. Our task was to mill the bed to get the right surface parameters – shape tilt, flatness, roughness and the reciprocal position of the left and right side.
In addition to large projects (e.g. https://wwtech.com.pl/en/2020/01/29/two-milling-machines-in-action/ ), WWtech also provides a wide range of small mobile machining services Removal of broken/seized bolts and studs, even in hard-to-reach areas. Sometimes the thread is also damaged, then we offer a number of repair techniques. Some of them were already presented in the article: https://wwtech.com.pl/en/2019/06/24/repair-of-threaded-holes-2/ The choice of the optimal m.in method depends on: nominal thread size, screw and body materials, reasons for breaking or blocking, possible deformation, further use of the thread (e.g. oversizing) access to the place Regeneration of the groove under the sealing ring. The crushed section of the edging was restored by a weld by the Customer and […]
Telescopic bushings are a very important and responsible element of the steam admission system in the steam turbines due to the extreme operating conditions (even 540 °C, 20-30 MPa). The seal typically consists of a set of multi-edge seals to seal the coaxial portions of the intake pipeline. The reason for using such a solution is the possibility of installing the inner casing in the outer one, as well as compensation of thermal expansion of the elements. This time, the task was to machine heavily worn-out sleeves to new diameters. While stationary machining of such an element is trivial, fulfilling the design requirements of machining in the mobile version, including […]
We finished the work on the modernization of the gas turbine, where our task was a.o. very difficult drilling for the casings’ retaining elements. The problem we had to face is the difficult position of drilling – on the edge between two different materials, with a step or drilling into the halve of the old hole. Since the holes were arranged around the perimeter, some of them were also drilled in the ceiling position. Drilling diagram and example of the appearance of the hole before drilling Drilling in the ceiling position The finished hole and the dowel Punching a new hole
Dear Customers, we are changing the invoicing address to Tumlin Dąbrówka 68a, 26-050 Zagnańsk. Other data remain unchanged.
Due to the projects implemented for the shipbuilding and offshore industry in the European Union, we underwent certification by the Classification Society – Registro Italiano Navale. The competences confirmed by the RINA certificate allow us to participate in projects which due to the maritime specificity and related regulations must be supervised and approved by the Classification Society. The certificate confirms the suitability of our technologies for marine applications. Registro Italiano Navale (RINA) – an Italian classification society founded in 1861 as Registro Italiano, with headquarters in Genoa. After merging with the competitive Registro Nazionale in 1910, it operated as the Registro Nazionale Italiano, and from 1922 as the Registro Italiano […]
The main aspects of turning surfaces of cylindrical drums, shafts and journals are:
The deadlines are always tight. To meet the schedule, sometimes one needs to work not only 24/7, but also double the machining capability. We can take up such challenges thanks to the large WWTECH equipment base. The pictures show two Circular Mill (CM6200) milling machines. More about the CM6200 in the video
Sometimes there is a need to do something untypical, custom. This time it was about making “deepenings” in the ribs of a large rotary element.
We are pleased to present a short company presentation ‘2020: Wwtech 2020.pdf