免费a一毛片,有码毛片,好爽又高潮了毛片免费下载16禁,黄色一级免费网站,毛片二区,一级毛片视频免费,性a视频

景泰藍作文

時間:2024-09-11 09:03:44 好文 我要投稿
  • 相關(guān)推薦

景泰藍作文

  cloisonne is a famous traditional enamel ware, known as the "blue of jingtai" in china, with a history of over 500 years. it was so called "blue" was the typical colour used for enamelling and "jingtai" was the reign title of the 7th ming emperor. enamel ware became very popular during the emperors reign. there is a great variety of products, such as vase, jar, bowl,plate, bo and ash-tray. they are brilliant in colours and splendid in design.cloisonne is one of the famous arts and crafts of beijing.the making of cloisonne requires rather elaborate and complicated processes; base-hammering, copper-strip inlay, soldering, enamel-filling, enamel-firing, polishing and gilding. the products are featured by ecellent quality. the skill and workmanship have been handed down from the ming dynasty. quite a number of new varieties have been created. it enjoys a high reputation both at home and abroad. they are mostly for eport.

景泰藍作文

  cloisonne-making

  the first step is body making. the material used for making the bodyis copper, because copper is easily hammered and stretched. this step requires a sound judgement in shaping and uniformity of thickness and weight. it is in fact the work of the copper smith. the only difference is that when an article is well shaped, the copper smith‘s work is finished, whereas the cloisonne craftsman’s work is just on the the start.

  the second step is filigree soldering. this step requires great care and high creativeness. the artisan adheres copper strips onto the body. these strips are of 1/16 inch in diameter and of lengths as the artisan desires. the strips or filigree thus adhered make up a complicated but complete pattern. the artisan has a blueprint in mind and he can make full use of his eperience, imagination and aesthetic view in setting the copper strips on the body.the third step is to apply the colour which is known as enamel filling. the colour or enamel is like the glaze on ceramics. it is called falang. its basic elements are boric acid, saltpetre and alkaline. due to the difference in the minerals added, the colour differs accordingly. usually one with much iron will turn grey, with uranium, yellow, with chromium, green, with zinc, white, with bronze, blue, with gold or iodine, red. in time of filling, all the colours, ground beforehand into minute powder and contained in plates, are placed in front of the workers and are then applied to the little compartments separated by filigree.the fourth step is enamel firing. this is done by putting the article, with its enamel fillings, to the crucible. after a short moment, the copper body will turn red. but after firing, the enamel in the little compartment will sink down a bit. that will require a refilling. this process will go on repeatedly until the little compartments are finally filled.

  the fifth step is polishing. the first polish is with energy. its aim is to make the filigree and the filled compartments even. the whole piece is again put to fire. polish once more with a whet stone. finally, use a piece of hard carbon to polish again so as to obtain some lustre on the surface of the article.

【景泰藍作文】相關(guān)文章:

作文啊作文02-10

鄉(xiāng)情作文作文10-06

我與作文作文01-01

神秘的作文課作文09-28

難忘的作文課作文04-06

有趣的作文課作文01-07

我與作文作文(優(yōu)秀14篇)01-01

作文啊作文(大全3篇)02-11

有趣的作文課作文(精)01-09

周末的作文05-07

原阳县| 库伦旗| 五峰| 诏安县| 轮台县| 丹东市| 昌邑市| 福鼎市| 台南市| 舒兰市| 韶关市| 广河县| 蒲城县| 南川市| 宝山区| 蒙山县| 安达市| 平和县| 渝中区| 志丹县| 云南省| 大英县| 安吉县| 井研县| 吴江市| 桃江县| 池州市| 吉隆县| 通道| 肃北| 伊金霍洛旗| 岳西县| 文安县| 曲沃县| 梅河口市| 徐闻县| 大港区| 岚皋县| 大安市| 来凤县| 旬邑县|