- Kari kolehmainen Samaa tarkoittava suhdelaskenta

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Elementtimuotit tehtaisiin

Two to Irak delivered mould equipment and participation to design. Tens of moulds to build towns. In the picture poured column mould and behind other moulds to different intention. Installation made by men, who made moulds in Hollola factory in year 1981. The starting-point to design were drawings and requirements of flatness on the surfaces and straightness.

 

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Dry and warm environment does not demand the erection of structures on top of the moulds. Sandstorms only can cover moulds to dust and sand. For the most difficult moulds have indicated to be the spiral stair moulds.  These drafting by hand to paper produced gray hairs and worry. The definition of the strength calculation are increased eg. initial stresses' and noticing the mould pressure effect. Later different vessel constructions and measurements have learned, the stiffened sheet fields are more rigid, than by calculating. In this  context I write about mild steels. When non-corroding stainless steel, there is cold reduction effect, which I write in related to vessel structures.

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22.12.2014*7:13 (935 - 48)
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