SU694752A1 - Method of the determination of internal stresses in lumber - Google Patents
Method of the determination of internal stresses in lumberInfo
- Publication number
- SU694752A1 SU694752A1 SU782609515A SU2609515A SU694752A1 SU 694752 A1 SU694752 A1 SU 694752A1 SU 782609515 A SU782609515 A SU 782609515A SU 2609515 A SU2609515 A SU 2609515A SU 694752 A1 SU694752 A1 SU 694752A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- lumber
- determination
- internal stresses
- edges
- sawn timber
- Prior art date
Links
Description
1one
Изобретение относитс к сушильной технике и, в частности, к автоматизации процессов сушки пиломатериалов.The invention relates to a drying technique and, in particular, to the automation of drying processes for sawn timber.
Известны способы определени внутрейних напр жений в пиломатериале, сформированном в штабель, путем измерени величины деформаций пиломатериала 1.Methods are known for determining internal stresses in lumber formed into a pile by measuring the amount of deformation of lumber 1.
Однако известный способ недостаточно точен.However, the known method is not accurate enough.
Целью изобретени вл етс устранение указанного недостатка, т. е. увеличение точности определени внутренних напр жений .The aim of the invention is to eliminate this drawback, i.e., to increase the accuracy of determining internal stresses.
Поставленна цель достигаетс тем, что деформацию пиломатериала определ ют по разности величин зазоров между кромками двух смежных пиломатериалов в штабеле, измеренных в местах расположени поверхностных и внутренних слоев пиломатериала .This goal is achieved in that the deformation of the sawn timber is determined by the difference in the gaps between the edges of two adjacent sawn timber in the stack, measured at the locations of the surface and inner layers of the sawn timber.
Способ иллюстрируетс чертежом, где изображены два смежных пиломатериала 1 и 2, зазоры между точками на их кромках соответственно равны AiA2, BiB2, CiCa, т.е. выбирают несколько точек на кромках материала . Измер ют рассто ние между точками на кромках материала в начале сушки и сравнивают их с текущими величинами в процессе сушки, так как материалы измен ют свою геометрию, как показано на чертеже, то степень изменени рассто ний между выбранными точками свидетельствует о внутренних деформаци х.The method is illustrated in the drawing, where two adjacent lumber 1 and 2 are shown, the gaps between the points on their edges are respectively AiA2, BiB2, CiCa, i.e. select several points on the edges of the material. The distance between the points on the edges of the material at the beginning of drying is measured and compared with the current values during the drying process, since the materials change their geometry, as shown in the drawing, the degree of change in the distance between the selected points indicates internal deformations.
Таким образом, обеспечиваетс выполнение поставленной цели - повышение качества измерени , т. е. точности.Thus, the fulfillment of the goal is achieved - improvement of the quality of measurement, i.e. accuracy.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782609515A SU694752A1 (en) | 1978-05-03 | 1978-05-03 | Method of the determination of internal stresses in lumber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782609515A SU694752A1 (en) | 1978-05-03 | 1978-05-03 | Method of the determination of internal stresses in lumber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU694752A1 true SU694752A1 (en) | 1979-10-30 |
Family
ID=20761934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782609515A SU694752A1 (en) | 1978-05-03 | 1978-05-03 | Method of the determination of internal stresses in lumber |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU694752A1 (en) |
-
1978
- 1978-05-03 SU SU782609515A patent/SU694752A1/en active
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