CN105344059A - Anti-cracking coating method of wood sheets of bars - Google Patents
Anti-cracking coating method of wood sheets of bars Download PDFInfo
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- CN105344059A CN105344059A CN201510903513.8A CN201510903513A CN105344059A CN 105344059 A CN105344059 A CN 105344059A CN 201510903513 A CN201510903513 A CN 201510903513A CN 105344059 A CN105344059 A CN 105344059A
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- thick stick
- page
- glued membrane
- wood
- coated
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B1/00—Horizontal bars
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B3/00—Parallel bars or similar apparatus
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention belongs to the field of production of sports goods, and particularly relates to an anti-cracking coating method of wood sheets of bars. The anti-cracking coating method of the wood sheets of the bars comprises the steps that roughing treatment is conducted on the surface of a bar core; the surface of the bar core is coated with an adhesive film; a reinforcing material strap is attached to the surface of a wood sheet in the transverse direction; the bar core with the adhesive film is coated with the wood sheet and fixed through a fixing strap in a spiral winding mode when coating is conducted; the fixed bar core is packed with a vacuum bag and put in a drying oven, the vacuum bag is vacuumized, and heating curing is conducted simultaneously. According to the anti-cracking coating method of the wood sheets of the bars, the defects that the wood sheets are cracked and scraped in the coating process of uneven bar products, and in the use process, the surfaces of the wood sheets crack and burrs occur are overcome. The method can improve the anti-cracking performance of the wood sheets in the coating process, therefore, the designed wood sheet thickness is increased, and the service life of the product is prolonged. When 100 thousand times of bending fatigue tests, damp and hot tests and salt spray tests are conducted on the bar products produced through the method, it is proved that cracking of the surfaces of the wood sheets does not occur.
Description
(1) technical field
The invention belongs to Sports Goods Production field, particularly a kind of thick stick class wood page crack resistence method for coating.
(2) background technology
The heavy gymnastics sports events that uneven bars, parallel bars sports events specify as International Gymnastic Federation, is subject to the extensive attention of sporting world of various countries.The timber processing and manufacturing that early stage uneven bars, the many uses of parallel bars product are firm.Product length is large, requirement of strength is high, and therefore needing on timber whole thick stick face length degree, without defect affect product safety use, needs the high-quality timber of at substantial can produce qualified uneven bars or parallel bars.
Along with the development of composite, the coated wooden page structure of composite thick stick core arises at the historic moment.Intensity, elasticity programmable composite thick stick core is as the primary load bearing part of uneven bars or parallel bars, and external sheath one deck wood page, plays effects such as increasing coefficient of friction, use high strength adhesive to bond between wooden page and thick stick face.The thick stick series products of this structure have the feel of full wood products, elasticity, safety coefficient profundity by each large race high praise and athleticly to like.But because the wooden page 1mm that only has an appointment is thick, length but needs 2-3 rice long, burl on wood page processing trunk inevitably causes the defect on wooden page length degree, no matter traditional coated the or various mechanical method for coating of craft, in the coated process of thick stick series products, wooden page causes a large amount of raw material and the waste in man-hour along lumber grain this phenomenon that ftractures.Thick stick series products is in use under the effect of wooden page frame table in tensile stress and the periodically moisture absorption, and a large amount of crack nucleations and Crack Extension occur wooden page frame table, and microfissure expansion finally defines the thick stick face cracking of macroscopic view.Have a strong impact on the quality stability of sports uneven bars, parallel bars product.
Traditional gluing technique for sticking gluing number be difficult to control, cause the thickness distribution of adhesive uneven, the product of final formation produces distortion because bondline thickness is uneven, though in particular manufacturing craft the shaping eccentricity issues that also can cause product thick stick core and thick stick face because rubberization thickness is uneven.And the excessive adhesive under traditional handicraft outwards can ooze out from the end of thick stick series products and wooden page slot gap, the special polishing operation of setting is not only needed to remove spilling glue after products solidifying, waste time and energy, and excessive glue is attached to stability product external surfaces having a strong impact on product appearance and skin-friction coefficient.
These problems make domestic multiple uneven bars and parallel bars product not by International Gymnastic Federation's certification, and added value of product and profit margin are very limited.The invention solves the wooden page problem of Cracking in the coated and use procedure of uneven bars, parallel bars, greatly strengthen the international competitiveness of domestic sports equipment.
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, a kind of thick stick class wood page crack resistence method for coating is provided, with thick stick core body for mould, adopts the bonding wooden page strengthened through adhesive tape of certain thickness thermosetting glued membrane, pack after fixing, vacuumize and be heating and curing, after solidification, remove reinforcement adhesive tape.
The present invention is achieved through the following technical solutions:
A kind of thick stick class wood page crack resistence method for coating, is characterized in that: comprise the following steps:
(1) thick stick wicking surface is carried out roughening treatment; (2) surface of the thick stick core after roughening treatment is coated with solid-state glued membrane; (3) cut the wooden page of certain length and width according to design size, reinforcing material strips is transversely affixed on wooden page frame table; (4) the wooden page in step (3) is coated on the thick stick core of band glued membrane, fixes with fixed band spiral winding while coated; (5) the thick stick core fixed in step (4) dress vacuum bag is put into baking oven, vacuum bag is vacuumized and is heating and curing simultaneously.
Solid-state glued membrane described in step (1) is thermosetting adhesive glued membrane.
Further, described thermosetting adhesive glued membrane comprises thermosetting epoxy resin glued membrane.
Step (3) described reinforcement material is adhesive tape.
Further, step (3) described reinforcement material is High temperature-resistanadhesive adhesive tape.
Described wooden page thickness is 0.3-3mm.
It is 0.01-0.1Mpa that described step (5) described vacuum bag vacuumizes final vacuum degree.
Wherein, thermosetting adhesive glued membrane room temperature has certain viscosity, can glue mutually and can can't harm separation between glued membrane.Thickness uniform thermosetting resin glued membrane can fully infiltrate wooden page but can not be absorbed completely by wooden page in the process of heating.
To be solidified complete after remove thick stick face surface reinforcement material.
The present invention adopts the composite thick stick core of surface coarsening process to be mould, this composite thick stick core is certainly as shaper, shaping size precision is high, does not need extra particular manufacturing craft to save die cost with shaping rear a large amount of relative conventional method of aft-loaded airfoil method, decreased the energy waste of heating mould and subsequent machining cost.The cracking resistance stress of wood page is strengthened improve product wood page design thickness, improves the product work life-span.The reinforcement of wood page, can prevent forming core and the expansion of wooden page crackle, greatly reduce wooden page and scrap quantity, decrease the replacing of wooden page and again cut the time, favourable improves production efficiency.
This method uses has certain thickness, there is under room temperature the solid-state glued membrane of some strength, be coated on after cutting into certain length and width on the composite thick stick core of surface coarsening process, avoid the problem that traditional coating technique production method mesoglea uneven thickness causes product surface and thick stick core bias.In addition, this method adjusts the gel content at the uneven bars wood page slot gap place produced by the change width of glued membrane and the width of wooden page, make it just fill up gap, need not arrange gap again and mend adhesive process.
When occuring bending and deformation in the coated process of wooden page after the process of employing this method, the bending tension of wooden page frame table is born by adhesive tape, and wooden page only bears bending compression or a small amount of tension.Compression not only can suppress the new formation of micro-crack and the expansion of original crack, and the compression that bending compression is formed can also carry out enforce compression repairing to timber original crack defect, thus substantially increase the utilization rate of wooden page, save cost of material and human cost.The wooden page be under compressive state removes surperficial adhesive tape after the solidification of thermosetting adhesive is bonding, wood page frame table is still in compressive state, have strong inhibitory action to the formation of crackle and expansion, the uneven bars therefore produced by the method and parallel bars have the ability of resisting surface wood page cracking.
Beneficial effect of the present invention is:
The inventive method with composite thick stick core for mould, extra particular manufacturing craft is not needed to save die cost with shaping rear a large amount of relative conventional method of aft-loaded airfoil method, decreased the energy waste of heating mould and subsequent machining cost, High temperature-resistanadhesive adhesive tape strengthens wooden page simultaneously, there is strong inhibitory action to the formation of crackle and expansion, and this method avoids the problem that traditional coating technique production method mesoglea uneven thickness causes product surface and thick stick core bias.In addition, this method adjusts the gel content at the uneven bars wood page slot gap place produced by the change width of glued membrane and the width of wooden page, make it just fill up gap, need not arrange gap again and mend adhesive process.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further.
Fig. 1 uses High temperature-resistanadhesive adhesive tape to strengthen the wooden page schematic diagram cut;
Fig. 2 is coated on by thermosetting glued membrane on the thick stick core of alligatoring;
Fig. 3, is coated wooden page and fixing rear dress vacuum bag schematic diagram;
Wherein, 1 wooden page, 2 High temperature-resistanadhesive adhesive tape, 3 solid-state glued membranes, 4 thick stick cores, 5 fixed bands, 6 vacuum bags.
(5) detailed description of the invention
Embodiment 1
Cut the wooden page 1 of certain length and width according to design size, use under heating-up temperature there is some strength, High temperature-resistanadhesive adhesive tape 2 that glue can not pollute thick stick face is transversely affixed on wooden page frame table.The thermosetting epoxy resin glued membrane 3 under room temperature with some strength and viscosity is affixed on the composite thick stick core 4 of surface coarsening process, it is 0.1mm that thermosetting epoxy resin glued membrane is wound around thickness, by the thick wooden page of 0.3mm that cuts at the temperature of the glutinous wooden page of glued membrane, be coated on the thick stick core 4 of band glued membrane 3; Coated side fixed band 5 in limit is fixed, and fill vacuum bag 6 after coated wooden page and put into baking oven and vacuumize, vacuum is 0.01MPa, is heating and curing while vacuumizing, and solidification temperature is 50 degrees Celsius.After solidification, remove reinforcement adhesive tape, all do not ftracture through 100,000 flexural fatigue tests, salt spray test 48h, 80 degrees Celsius of wooden pages in damp heat test 48h surface.
Embodiment 2
Cut the wooden page 1 of certain length and width according to design size, use under heating-up temperature there is some strength, High temperature-resistanadhesive adhesive tape 2 that glue can not pollute thick stick face is transversely affixed on wooden page frame table.The thermosetting epoxy resin glued membrane 3 under room temperature with some strength and viscosity is affixed on the composite thick stick core 4 of surface coarsening process, it is 2mm that thermosetting epoxy resin glued membrane is wound around thickness, by the thick wooden page of 1mm that cuts at the temperature of the glutinous wooden page of glued membrane, be coated on the thick stick core 4 of band glued membrane 3, now wooden page can can't harm with glued membrane and be separated; Coated side fixed band 5 in limit is fixed, and fill vacuum bag 6 after coated wooden page and put into baking oven and vacuumize, vacuum is 0.05MPa, 120 degrees Centigrade solidifications while vacuumizing.After solidification, remove reinforcement adhesive tape, all do not ftracture through 100,000 flexural fatigue tests, salt spray test 48h, 80 degrees Celsius of wooden pages in damp heat test 48h surface.
Embodiment 3
Cut the wooden page 1 of certain length and width according to design size, use under heating-up temperature there is some strength, High temperature-resistanadhesive adhesive tape 2 that glue can not pollute thick stick face is transversely affixed on wooden page frame table.The thermosetting epoxy resin glued membrane 3 under room temperature with some strength and viscosity is affixed on the composite thick stick core 4 of surface coarsening process, it is 5mm that thermosetting epoxy resin glued membrane is wound around thickness, by the thick wooden page of 3mm that cuts at the temperature of the glutinous wooden page of glued membrane, the now not glutinous wooden page of glued membrane, wooden page can can't harm with glued membrane and be separated; Coated side fixed band 5 in limit is fixed, and fill vacuum bag 6 after coated wooden page and put into baking oven and vacuumize, vacuum is 0.1MPa, is heating and curing while vacuumizing, and solidification temperature is 150 degrees Celsius.After solidification, remove reinforcement adhesive tape, all do not ftracture through 100,000 flexural fatigue tests, salt spray test 48h, 80 degrees Celsius of wooden pages in damp heat test 48h surface.
Claims (7)
1. a thick stick class wood page crack resistence method for coating, is characterized in that: comprise the following steps:
(1) thick stick wicking surface is carried out roughening treatment; (2) surface of the thick stick core after roughening treatment is coated with solid-state glued membrane; (3) cut the wooden page of certain length and width according to design size, reinforcing material strips is transversely affixed on wooden page frame table; (4) the wooden page in step (3) is coated on the thick stick core of band glued membrane, fixes with fixed band spiral winding while coated; (5) the thick stick core fixed in step (4) dress vacuum bag is put into baking oven, vacuum bag is vacuumized and is heating and curing simultaneously.
2. thick stick class wood page crack resistence method for coating according to claim 1, is characterized in that: solid-state glued membrane described in step (1) is thermosetting adhesive glued membrane.
3. thick stick class wood page crack resistence method for coating according to claim 2, is characterized in that: described thermosetting adhesive glued membrane comprises thermosetting epoxy resin glued membrane.
4. thick stick class wood page crack resistence method for coating according to claim 1, is characterized in that: step (3) described reinforcement material is adhesive tape.
5. thick stick class wood page crack resistence method for coating according to claim 4, is characterized in that: step (3) described reinforcement material is High temperature-resistanadhesive adhesive tape.
6. thick stick class wood page crack resistence method for coating according to claim 1, is characterized in that: described wooden page thickness is 0.3-3mm.
7. thick stick class wood page crack resistence method for coating according to claim 1, is characterized in that: it is 0.01-0.1Mpa that described step (5) described vacuum bag vacuumizes final vacuum degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903513.8A CN105344059B (en) | 2015-12-09 | 2015-12-09 | A kind of thick stick class wood page crack resistence method for coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903513.8A CN105344059B (en) | 2015-12-09 | 2015-12-09 | A kind of thick stick class wood page crack resistence method for coating |
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| CN105344059A true CN105344059A (en) | 2016-02-24 |
| CN105344059B CN105344059B (en) | 2017-11-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108081714A (en) * | 2017-12-21 | 2018-05-29 | 泰山体育产业集团有限公司 | A kind of powder coating composite material horizontal bar |
Citations (10)
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|---|---|---|---|---|
| NL6512877A (en) * | 1965-10-05 | 1967-04-06 | ||
| JPS5092364A (en) * | 1973-12-20 | 1975-07-23 | ||
| DE2814212A1 (en) * | 1978-04-03 | 1979-10-11 | Spieth Verwaltung | Bar for gymnastic parallel bars - has dense porous polyurethane core, with spiral glass fibre winding secured by adhesive |
| DE2824696A1 (en) * | 1978-06-06 | 1979-12-20 | Spieth Verwaltung | Parallel bars for gymnastics - with composite plastic veneer tubes filled with chips and granules for better damping |
| CN2871190Y (en) * | 2005-11-17 | 2007-02-21 | 蔡明财 | Rod body |
| CN102649302A (en) * | 2012-05-15 | 2012-08-29 | 厦门谨天碳纤维制品有限公司 | Forming process for covering carbon fiber on outer surface of structural part |
| CN104175058A (en) * | 2014-07-10 | 2014-12-03 | 中国人民解放军理工大学 | Vamp wrapping process for carbon fiber prepreg repaired aluminum alloy crack pipe |
| CN104441631A (en) * | 2014-11-10 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Manufacturing method of easily worn silicon rubber ring and metal cementing part |
| CN104534221A (en) * | 2015-01-06 | 2015-04-22 | 北京力强基业工程技术有限公司 | Method for repairing and reinforcing pipeline by means of composite materials |
| CN104707291A (en) * | 2015-03-19 | 2015-06-17 | 泰山体育产业集团有限公司 | High-low bar surface and machining technology |
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2015
- 2015-12-09 CN CN201510903513.8A patent/CN105344059B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6512877A (en) * | 1965-10-05 | 1967-04-06 | ||
| JPS5092364A (en) * | 1973-12-20 | 1975-07-23 | ||
| DE2814212A1 (en) * | 1978-04-03 | 1979-10-11 | Spieth Verwaltung | Bar for gymnastic parallel bars - has dense porous polyurethane core, with spiral glass fibre winding secured by adhesive |
| DE2824696A1 (en) * | 1978-06-06 | 1979-12-20 | Spieth Verwaltung | Parallel bars for gymnastics - with composite plastic veneer tubes filled with chips and granules for better damping |
| CN2871190Y (en) * | 2005-11-17 | 2007-02-21 | 蔡明财 | Rod body |
| CN102649302A (en) * | 2012-05-15 | 2012-08-29 | 厦门谨天碳纤维制品有限公司 | Forming process for covering carbon fiber on outer surface of structural part |
| CN104175058A (en) * | 2014-07-10 | 2014-12-03 | 中国人民解放军理工大学 | Vamp wrapping process for carbon fiber prepreg repaired aluminum alloy crack pipe |
| CN104441631A (en) * | 2014-11-10 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Manufacturing method of easily worn silicon rubber ring and metal cementing part |
| CN104534221A (en) * | 2015-01-06 | 2015-04-22 | 北京力强基业工程技术有限公司 | Method for repairing and reinforcing pipeline by means of composite materials |
| CN104707291A (en) * | 2015-03-19 | 2015-06-17 | 泰山体育产业集团有限公司 | High-low bar surface and machining technology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108081714A (en) * | 2017-12-21 | 2018-05-29 | 泰山体育产业集团有限公司 | A kind of powder coating composite material horizontal bar |
| CN108081714B (en) * | 2017-12-21 | 2023-10-20 | 泰山体育产业集团有限公司 | Powder coating composite horizontal bar |
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| Publication number | Publication date |
|---|---|
| CN105344059B (en) | 2017-11-28 |
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