A process method for expansion, softening and bending of wooden flower wheel hub plate
A process method and bending technology, which is applied in the direction of wood bending, wooden frame wheel manufacturing, wheels, etc., can solve the problems of unsatisfactory floats, limit the scope and function of wooden floats, and achieve easy decoration and control of process conditions , Improve the effect of bending quality
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Embodiment 1
[0034]First, softening and soaking treatment: hemp oak board - choose Dayinshan hemp oak in Fengyang County, 13 years old, 6.8m high, 8.2cm diameter at breast height, and take 60mm × 20mm × 300mm board square material, its compression resistance along the grain Strength 511kg / cm 2 , flexural strength 1123kg / cm 2 , the air-dry density is 0.842, and the board is soaked in the expansion softening solution. The expansion softening solution is composed of three components: aluminum sulfate octadecahydrate, manganese tetraborate nonahydrate, and boric acid. The mass ratio of aluminum sulfate octadecahydrate and borax is 38:47 : 23, mix evenly, the mass fraction of the solution is 20%, and then adjust the pH of the solution to 3 with a mass fraction of 18% phosphoric acid, that is, after soaking for 220 hours, dry at 35 °C to a moisture content of 30%; secondly, vacuum bake Puffing: Put the wood board into a vacuum oven at 30°C, bake and puff it with electricity, and press and shape...
Embodiment 2
[0036] First, softening and soaking treatment: maple poplar board, select Fuyang Funan Changfeng Shuangdun maple poplar, 10 years old, 15m high, 45cm DBH sapwood, take 60mm×20mm×300mm square material, its compressive strength along grain is 374kg / cm 2 , flexural strength 792kg / cm 2 , Air-dry density 0.467%, maple poplar wood material is light and soft, easy to process. In the past, it was mainly used for furniture and agricultural tools, such as hoe handles, etc., and another main use was as a match. In the swelling softening liquid, the swelling softening liquid is composed of aluminum sulfate octadecahydrate, five Zinc borate , three components of boric acid, the mass ratio of aluminum sulfate octadecahydrate and borax is 45:47:25, and the mass fraction of the solution is 20%, and then the pH of the solution is adjusted to 4 with a mass fraction of 18% phosphoric acid, that is, soaked for 200h After that, it is dried at 35°C to a moisture content of 20%; secondly, vacuum...
Embodiment 3
[0038] Robinia locust board - Select the sapwood of Bozhou Guoyang single-collection spherical crown without Robinia pseudoacacia, tree age 13 years, height 14m, diameter at breast height 0.5m, take 60mm × 20mm × 300mm square material, and its compressive strength along grain is 705kg / cm 2 , flexural strength 1369kg / cm 2 , the air-dry density is 0.794. Robinia pseudoacacia is spread all over the country, and the cultivation range is centered on the middle and lower reaches of the Yellow River and the Huaihe River Basin. Robinia pseudoacacia is widely cultivated in Anhui Province and is a common tree species in plains and hills. In the past, it was mostly used for fuelwood and agricultural implement handles, such as shovel handles. First of all, softening and soaking treatment: soak the wood board in the expansion softening solution. The expansion softening solution is composed of three components: aluminum sulfate octadecahydrate, manganese tetraborate nonahydrate, and boric...
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