SU217633A1 - Method of producing articles of bushing type from wood - Google Patents
Method of producing articles of bushing type from wood Download PDFInfo
- Publication number
- SU217633A1 SU217633A1 SU651041432A SU1041432A SU217633A1 SU 217633 A1 SU217633 A1 SU 217633A1 SU 651041432 A SU651041432 A SU 651041432A SU 1041432 A SU1041432 A SU 1041432A SU 217633 A1 SU217633 A1 SU 217633A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wood
- mandrel
- winding
- ammonia
- bushing type
- Prior art date
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- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
СПОСОБ ИЗГОТОВЛЕНИЯ ИЗ ДРЕВЕСИНЫ ИЗДЕЛИЙ ТИПА ВТУЛКИ, путем навивки разм гченной заготовки на оправку и последующего прессовани , отличающийс тем, что, с целью предотвращени расслаивани древесины в процессе навивки, заготовку предварительно пропитывают аммиаком или его соединени ми и в насыщенном состо нии подвергают уплотнению в процессе движени заготовки непосредственно перед оправкой.A METHOD FOR MANUFACTURING FROM WOOD OF PRODUCTS OF THE SLEEVE TYPE, by winding a softened billet onto a mandrel and subsequent pressing, characterized in that, in order to prevent delamination of the wood during the winding process, the billet is pre-impregnated with ammonia or its compounds and compacted in a saturated state during the winding process movement of the workpiece directly in front of the mandrel.
Description
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00 Изобретение, относитс к способам изготовлени изделий из древесины, например втулок, уплотнений дл машин , поршневых колец и тому подобных изделий, используемых в качестве заменителей аналогичных изделий из черных и цветных металлов. Издели изготавливаютс путем навивки разм гченных заготовок-реек на оправку и последующего прессовани , Недостатком таких способов вл етс возможность расслаивани волокон недостаточно пластичной древесины в процессе намотки, что ведет к снижению упругих свойств и требуе дальнейшей обработки заготовок после сушки. Цель изобретени - устранение указанных недостатков. Дл этого заготовку предваритель но пропитывают аммиаком или его соединени ми и в насыщенном состо нии подвергают уплотнению в процессе движени заготовки непосредствен но перед оправкой. Сущность предлагаемого способа изготовлени из древесины изделий типа втулок заключаетс в следзгющем 3 . .2 Приготовленные из любых древесных пород заготовки в виде реек определенных размеров пропитываютс аммиаком или его соединени ми в автоклавах при повышенных температуре и давлении или в вакууме. Возможна также пропитка аммиаком целых бревен с последзпощей распиловкой их на рейки заданных размеров. Врем пропитки аммиачным газом в вакууме 1 ч при варианте реек 1500x10x10 мм. Пропитанные таким образом до насыщенного состо ни заготовки подвергаютс навивке с одновременным уплотнением непосредственно перед оправкой. После сушки навитых в спирали реек происходит окончательна обработка их - опиление торцов, комплектование дл заданных размеров и т.д. Изготовленные описанным способом различные уплотнени и поршневые-кольца полностью готовы, втулки требуют дополнительных операций - укреплени полученных размеров склеиванием помещени в металлическую и т.д.The invention relates to methods for the manufacture of wood products, such as sleeves, seals for machines, piston rings and the like, used as substitutes for similar products from ferrous and non-ferrous metals. The products are made by winding softened blanks on the mandrel and then pressing. The disadvantage of such methods is the possibility of exfoliating the fibers of insufficiently plastic wood during the winding process, which leads to a decrease in the elastic properties and the further processing of the blanks after drying. The purpose of the invention is to eliminate these disadvantages. For this, the preform is pre-impregnated with ammonia or its compounds and, in a saturated state, is subjected to compaction during the movement of the preform directly in front of the mandrel. The essence of the proposed method of making wood products of the sleeve type is in the following 3. .2 Prepared from any tree species, blanks in the form of battens of certain sizes are impregnated with ammonia or its compounds in autoclaves at elevated temperature and pressure or in vacuum. It is also possible impregnation of whole logs with ammonia with the subsequent sawing them into slats of given sizes. The time of impregnation with ammonia gas in vacuum is 1 hour with the option of strips 1500x10x10 mm. The blanks so impregnated to saturation are subjected to winding with simultaneous compaction directly in front of the mandrel. After drying the strands wound in spirals, their final processing takes place - sawing of the ends, picking for given sizes, etc. The various seals and piston rings made by the method described are fully prepared, the bushings require additional operations — strengthening the obtained dimensions by gluing the room into a metal, etc.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU651041432A SU217633A1 (en) | 1965-12-06 | 1965-12-06 | Method of producing articles of bushing type from wood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU651041432A SU217633A1 (en) | 1965-12-06 | 1965-12-06 | Method of producing articles of bushing type from wood |
Publications (1)
Publication Number | Publication Date |
---|---|
SU217633A1 true SU217633A1 (en) | 1986-06-23 |
Family
ID=20438888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU651041432A SU217633A1 (en) | 1965-12-06 | 1965-12-06 | Method of producing articles of bushing type from wood |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU217633A1 (en) |
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1965
- 1965-12-06 SU SU651041432A patent/SU217633A1/en active
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