精品色色色,人妻聚会四人自慰,北条麻妃轮奸一区二区三区,操白虎逼很爽吧

新聞 · 中心

  • 文物展柜材料的類型
  • 本站編輯:杭州萬龍展覽展示有限公司發(fā)布日期:2022-03-01 14:35 瀏覽次數(shù):

文物保存展柜是保護文物的基本單元, 也是文物保護技術(shù)最重要的體現(xiàn)。目前展柜的材料種類主要有鋁、 鐵、 銅、 不銹鋼、 玻璃、 合金、 竹、 木和石質(zhì)等。

展柜所用材料必須對文物不造成損害,許多看起來適合制作展柜的材料都有可能對博物館保存文物產(chǎn)生致命的危害。 由于展柜和文物宜接或間接接觸, 如果展柜所用材料含有氯、 硫或其它酸性成分, 勢必會對文物造成損害。

玻璃是較為安全的文物展柜展柜制作材料,也是較好的文物展柜材料。 具有抗刮劃、 不透氣和便于貼附防紫外線薄膜的特點, 選擇玻璃種類時應(yīng)考患玻璃不應(yīng)含有酸性等有害氣體。

木材本質(zhì)材料熱傳導(dǎo)率低。 隔熱性能好, 而且具有良好的吸濕性和放濕性, 最好選用松樹、 榆樹、 木蘭、 胡桃等樹木。 

在木材展柜制作中, 為提高本材的吸、 放濕性能, 使展柜內(nèi)濕度環(huán)境更為穩(wěn)定, 可以利用化學(xué)溶液來增加木材的親水性。 此外, 開槽、 鉆孔增加吸濕面積或使用橫切面提高吸濕速率, 都可以改善柜內(nèi)濕度環(huán)境。

The exhibition cabinet for cultural relics preservation is the basic unit for the protection of cultural relics, and it is also the most important embodiment of cultural relics protection technology. At present, the material types of Exhibition cabinets mainly include aluminum, iron, copper, stainless steel, glass, alloy, bamboo, wood and stone.

The materials used in the showcase must not cause damage to the cultural relics. Many materials that seem suitable for making the showcase may cause fatal harm to the cultural relics preserved in the museum. As the showcase and cultural relics should be connected or indirectly contacted, if the materials used in the showcase contain chlorine, sulfur or other acidic components, it is bound to cause damage to cultural relics.

Glass is not only a relatively safe material for making cultural relics display cabinets, but also a better material for cultural relics display cabinets. It has the characteristics of scratch resistance, air tightness and easy attachment of anti ultraviolet film. When selecting the type of glass, it should be considered that the glass should not contain acid and other harmful gases.

The thermal conductivity of wood is low. It has good heat insulation performance and good moisture absorption and dehumidification. It is best to choose pine, elm, Magnolia, walnut and other trees.

In the production of wood showcase, in order to improve the moisture absorption and release performance of this material and make the humidity environment in the showcase more stable, chemical solution can be used to increase the hydrophilicity of wood. In addition, the humidity environment in the cabinet can be improved by slotting and drilling to increase the moisture absorption area or using the cross section to improve the moisture absorption rate.

2-1FP3111338-50-lp.jpg

地址/ADD

杭州市西湖區(qū)三墩鎮(zhèn)匯禾領(lǐng)府2-901

座機 / Tel

0571 88762810

手機 / phone

13968006922

暗呦交小U女国产精品视频| 国产女主播喷水视频在线观看 | 亚洲男人天堂| 极品少妇xxxx| 国产女人乱子对白AV片| 玩弄丰满奶水的女邻居| 清涧县| 少妇特黄a一区二区三区| 狠狠操影院| 国产91一区| 国产精品久久久久久久久齐齐| 国产熟睡乱子伦视频| 亚洲日韩精品无码一区二区三区| 熟女少妇一区二区三区| 丁香婷婷六月| 精品无码国产污污污免费网站| 国产精品18禁污污网站| 成 人 黄 色 网 站 在线播放视频| 亚洲a在线观看| 999国际综州合另类| 国产精品嫩草影院av蜜臀 | 成在人线AV无码免费高潮喷水| 国产在AJ精品| 久久亚洲精品情侣| 99精品久久久久久人妻精品| 国产精品久久综合| 美女免费| 国内久久久| 成人午夜精品久久久久久久网站| www色五月com| 久久精品国产99国产精偷| 久久99精品国产99久久6男男| 性色AV免费网站| 亚洲国产欧美在线人成aaaa | 日韩精品福利片午夜免费观看| 国产福利91精品| 久久黄色网| 91精品夜夜夜一区二区| www.涩涩| 亚洲专区欧美专区| 狠狠插|