FIELD: nuclear power engineering. SUBSTANCE: field of hexagonal cells is formed from integral sheet having horizontal linear notches made in advance between opposite corners of anticipated hexagonal cells; distance between notches in row equals length of hexagonal; cell edge; distance between rows of linear notches equals half the height of hexagonal cell; linear notches of one row are axially shifted from those of other row through distance equal to half the distance between centers of adjacent cells of one row; each horizontal row of formed cells is stepwise shifted relative to upper row of hexagonal cells through half the height of hexagonal cell. Projections in each hexagonal cell are made in the form of bosses; slits are made in parallel to hexagonal-cell bosses and to cell axis; bosses are made on non-adjacent edges of hexagonal cells. EFFECT: enhanced reliability due to absence of welded joints between cells; reduced cost due to wasteless manufacture of cellular field. 4 cl, 6 dwg
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Authors
Dates
2002-02-20—Published
2000-03-13—Filed