为井盖“换颜”,为昆虫“造家”!他们在这里发挥创意与想象

井盖_换颜_为昆虫_造家_在这里_发挥_创意_想象,井盖在社区里面非常不起眼但是却处处都有,换新后将是社区中最亮眼的存在。

– 井盖换新颜 –

小朋友们在为井盖换新颜的过程中,可以建立社区小主人翁意识,提高参与公共事务的积极性。

30余名社区儿童近日来到罗秀新村生态家园邻里汇,大家呼朋引伴,4人一组组成数支创作小分队,有秩序地分驻各创想地,挥洒画笔。花朵、熊猫、金龟子、小羊、鸭子等等,活灵活现,充满童趣,大家纷纷与自己小组的作品合影,在欢声笑语中为社区带来一道新的风景线。

篇章二

– 搭建昆虫旅社 –

小朋友们近日聚集在生态家园邻里汇二楼多功能室,大家分成4组合力搭建“昆虫旅社”。活动使用的diy材料主要是木板、木屑、小圆木、松果、瓦楞纸等可循环再利用材料。木板拼好昆虫旅社的框架,用螺丝拧紧,在框架里填充松果、木屑、小圆木、瓦楞纸等材料,这就是昆虫生活的地方。

昆虫旅店是用木材、稻草、砖块、塑胶软管等循环再用材料制作,为各类昆虫提供不同类型的小空间。任何花园都可以放置不同大小的昆虫旅店,以提高花园的生物多样性。

孩子们发挥想象,为自己搭建的“昆虫旅社”穿上美丽的“外衣”。

接下来,老师为孩子们科普昆虫旅社小知识。松果可以吸引瓢虫,瓢虫防治蚜虫、介壳虫等;树枝、树干、树皮等可以吸引布甲,布甲吃粘虫等;钻孔的原木吸引授粉昆虫,如壁蜂、切叶蜂等独具蜂类。

昆虫旅社搭建活动,不仅让孩子们发挥了创意,放飞了梦想,还收获了科学知识,寓教于乐,反响热烈。

篇章三

– 创意画制作 –

小朋友们济济一堂,用胶做颜料,用石子做素材,发挥想象,创意作画。

瞧!他们用不同颜色的奶油胶涂抹出背景,用各色小石头和人物、动物等组件摆出图案。等奶油胶干后,一个多彩明丽的新世界向我们展开了!

创意画帮助小朋友插上想象的翅膀,捕捉心灵的音符,发掘生命的吉光片羽,让内心更加辽阔。

编辑:邱彩红

审校:韦丽

转载请注明来自上海徐汇官方账号

上观号作者:徐汇通

免责声明:本文来自网络收集整理,不代表我方的观点和立场。

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井盖类型非常的多,像是上水井盖、污水井盖、雨水井盖、雨水箅子、电力井盖、路灯井盖、通信井盖、电信井盖、热力井盖、燃气井盖、电缆井盖、化粪池井盖等等。不同的井盖有不同的功能,上水井盖是供水用的井盖,下水井盖则主要是用来排除掉路面上的积水的。像湖南甄金井盖的类型,有不锈钢井盖、铸铁井盖、复合树脂井盖等类型,铸铁井盖中,球墨铸铁圆井和铸铁沟盖板使用的较多。因为路面上的车辆多,而球墨铸铁井盖的承压能力比较好,公路上使用的多的就是这类型井盖了,而且井盖的类型也多。

There are many types of well covers, such as water supply well covers, sewage well covers, rainwater well covers, rainwater grates, power well covers, street lamp well covers, communication well covers, telecommunications well covers, thermal well covers, gas well covers, cable well covers, septic tank well covers, and so on. Different manhole covers have different functions. The upper manhole cover is used for water supply, while the lower manhole cover is mainly used to remove water from the road surface. There are various types of manhole covers such as stainless steel manhole covers, cast iron manhole covers, and composite resin manhole covers. Among the cast iron manhole covers, ductile iron round wells and cast iron trench covers are more commonly used. “Because there are many vehicles on the road, and the pressure bearing capacity of ductile iron manhole covers is relatively good, this type of manhole cover is commonly used on highways, and there are many types of manhole covers.”

球墨铸铁井盖球墨铸铁产品的一种,球墨铸铁通过球化和孕育处理得到球状石墨,有效地提高了铸铁的机械性能,特别是提高了塑性和韧性,从而得到比碳钢还高的强度。球墨铸铁是20世纪五十年代发展起来的一种高强度铸铁材料,其综合性能接近于钢,正是基于其优异的性能,已成功地用于铸造一些受力复杂,强度、韧性、耐磨性要求较高的零件。球墨铸铁已迅速发展为仅次于灰铸铁的、应用十分广泛的铸铁材料。所谓“以铁代钢”,主要指球墨铸铁。

Ductile iron manhole covers are a type of ductile iron products. Spheroidal graphite is obtained from ductile iron through spheroidization and inoculation, effectively improving the mechanical properties of cast iron, especially its plasticity and toughness, resulting in higher strength than carbon steel. Ductile iron is a high-strength cast iron material developed in the 1950s. Its comprehensive performance is similar to that of steel. It is precisely based on its excellent performance that it has been successfully used to cast some parts with complex stress and high requirements for strength, toughness, and wear resistance. Ductile iron has rapidly developed into a widely used cast iron material, second only to gray iron. The so-called “replacing steel with iron” mainly refers to ductile iron.

不锈钢井盖是用于工业与民用建筑区内部的室外窨井。能够称心高级小区铺设路碴、大理石花岗岩,一切产品都可敞开板盖板,能够用于给排水井、通风井、电缆井、表面井等,是由井框与井盖组成。

“高分子井盖是采用不饱和聚脂树脂为基体的纤维增强热固性复合材料,用压制成型技术制成,是一种新型的环保型井盖。” 

绿色环保:不生锈、绿色环保、节约不可再生资源。
防盗功能强:高分子井盖系复合材料具有不可再生性,不能回收利用,因而具有主动免被盗功能。
平衡能力好、承压力强:盖座咬合精度高,配合性好提高了道路的通行能力和行车舒适度。
日常维护简便、费用低:重量轻、防盗窃、寿命长、易识别,便于日常的开启和维护,有效降低了养护的劳动强度和更新费用的支出。

“树脂井盖(也叫 高分子玻璃钢井盖/复合材料井盖)是一种以以玻璃纤维及其制品(玻璃布、带、毡、纱等)作为增强添加材料,以合成树脂作基体材料,主要由不饱和聚酯树脂、填料、引发剂、增稠剂、低收缩添加剂、膜模剂、颜料及增强材料等组成,然后高温模压成型的一种新型井盖产品。 
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