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基层体育活动,篮球甚为普及,也深受人们喜爱。然麻烦的是,篮球板在露天经风吹、雨淋和日晒,很容易变形和腐朽,及时更换吧,经费困难,凑合用吧,又影响活动正常进行,常使人望板兴叹,摇头而走。为解决这个矛盾,我反复思考:何不以塑代木,用特种塑料制成篮板。带着这个设想,我走访了几家工厂,想听听他们的意见。在得到赞同之后,我又亲自在实验室从耐温性能、重量、硬度、弹性等方面进行测试,结果令人满意。先说耐温情况;在50℃的车间里,将木板和塑料板同时置放8个小叶,结果,塑料板均无变化。然后又在-30℃的情况下做同样试验,塑料板同样没有发生变化。再看重量方面,同样体积的木板和塑料板经过称量,塑料
Grass-roots sports activities, basketball is very popular, but also loved by the people. The trouble is that the basketball board in the open air by the wind, rain and sun, it is easy to deformation and decadent, timely replacement of funding difficulties, improper use of it, but also affect the normal operation, people often disappointed, shaking his head And go. To solve this contradiction, I repeatedly think: why not plastic plastic wood, made of special plastic rebounds. With this idea, I visited several factories and wanted to hear their opinions. After getting approval, I personally tested in the laboratory from the temperature performance, weight, hardness, flexibility and other results were satisfactory. Let me talk about temperature conditions; in the workshop at 50 ℃, the board and plastic board placed 8 leaflets at the same time, as a result, no changes in the plastic board. Then again in the case of -30 ℃ do the same test, the same plastic plate did not change. Look at the weight, the same volume of wood and plastic board after weighing, plastic