日本h番全彩无遮挡h工口-国产精品无码无片在线观看3d-四虎国产成人永久精品免费-广东少妇大战黑人34厘米视频-人人妻人人狠人人爽天天综合网

當(dāng)前位置:首頁-新聞資訊

造成鋁板幕墻密封失效是什么原因造成的?

來源:http://www.kangyanghua.com/ 發(fā)布時(shí)間:2018-09-03

1、接口設(shè)計(jì)與密封膠位移能力不匹配
1. Interface design does not match the sealant displacement capability.
人們經(jīng)常發(fā)現(xiàn)密封膠使用在鋁板幕墻接口時(shí),有發(fā)生開裂的現(xiàn)象,特別是在季節(jié)變換時(shí),晝夜溫差特別大,溫度降低時(shí)板片收縮后對(duì)密封膠的過度拉伸造成。這主要是由于密封膠的位移能力達(dá)不到實(shí)際使用要求。
It is often found that the sealant cracks when it is used at the interface of the aluminum curtain wall, especially during the seasonal change, the temperature difference between day and night is especially large, and the excessive stretching of the sealant is caused by the shrinkage of the plate when the temperature drops. This is mainly due to the displacement capacity of sealant can not meet the actual requirements.
2、 密封膠選擇不當(dāng)
2. Improper choice of sealant.
目前,市面上用于耐候防水的密封膠產(chǎn)品有很多:聚氨酯密封膠、聚硫密封膠和硅酮密封膠等。在工程案例上,很多人都沒有注意幾種密封膠的區(qū)別,而隨意選擇在鋁板幕墻上進(jìn)行應(yīng)用,經(jīng)常出現(xiàn)密封膠表面龜裂、粉化的現(xiàn)象。
At present, there are a lot of sealant products for weather and waterproof on the market: polyurethane sealant, polysulfide sealant and silicone sealant. In engineering cases, many people do not pay attention to the difference of several kinds of sealants, and arbitrarily choose to use in the aluminum curtain wall, often appear sealant surface cracking, pulverization phenomenon.
3、粘結(jié)不良
3. Poor bonding.

鋁板生產(chǎn)廠家
鋁板幕墻還經(jīng)常出現(xiàn)的問題是密封膠與鋁板粘結(jié)不良。由于鋁板表面的處理方式有陽極氧化鋁、氟碳噴涂和粉末噴涂等,不同的處理方式和不同廠家的處理工藝均會(huì)對(duì)鋁板的表面結(jié)構(gòu)及性能產(chǎn)生影響,從而對(duì)密封膠的粘結(jié)造成影響。
The problem with aluminum curtain walls is the poor bonding between sealants and aluminum sheets. Because the surface treatment methods of aluminum plate include anodic alumina, fluorocarbon spraying and powder spraying, different treatment methods and different manufacturers'treatment processes will affect the surface structure and performance of aluminum plate, thus affecting the adhesion of sealant.
4、其他施工操作不當(dāng)
4, other construction operations improper
為了避免鋁板單元在加工和運(yùn)輸過程中出現(xiàn)劃傷現(xiàn)象,通常都會(huì)在其表面覆蓋一層PE保護(hù)膜。因此在鋁板安裝之后,需要對(duì)PE保護(hù)膜進(jìn)行清理,然后才能施膠。
In order to avoid scratches in the process of processing and transportation, a PE protective film is usually coated on the surface of aluminum sheet units. Therefore, after the aluminum plate is installed, the PE protective film needs to be cleaned before sizing.
5、密封膠條表面鼓起
5. The surface of the sealant is plucked up.
鋁板的熱膨脹系數(shù)較大,當(dāng)溫差較大時(shí),鋁板的熱脹冷縮容易導(dǎo)致未固化完全的密封膠表面出現(xiàn)起鼓現(xiàn)象,特別是橫向接縫。起鼓現(xiàn)象發(fā)生時(shí)由于密封膠內(nèi)部是實(shí)心的,不會(huì)對(duì)密封效果造成影響,主要是針對(duì)這種現(xiàn)象,可采取分兩次施膠的解決辦法,或者是在環(huán)境溫度較為恒定的時(shí)段進(jìn)行施膠作業(yè)。
The thermal expansion coefficient of aluminium sheet is large. When the temperature difference is large, the thermal expansion and cold shrinkage of aluminium sheet will easily lead to bulging on the surface of uncured sealant, especially on the transverse joints. Drum phenomenon occurs because the inside of the sealant is solid, will not affect the sealing effect, mainly for this phenomenon, can take two sizing solution, or in a relatively constant ambient temperature period of sizing operation.
本文由鋁卷生產(chǎn)廠家進(jìn)行編寫,想要了解更多的產(chǎn)品及更詳細(xì)的精彩內(nèi)容,請(qǐng)關(guān)注我們的官方網(wǎng)站:http://www.kangyanghua.com
This article is written by the manufacturer of aluminium coil. To learn more about the products and more details, please pay attention to our official website: http://www.kangyanghua.com.

主站蜘蛛池模板: 中文字幕亚洲综合久久| 大尺度无遮挡激烈床震网站| 国产精品无码一区二区三区电影| 又白又嫩毛又多15p| 亚洲欭美日韩颜射在线二| 国产猛男猛女超爽免费视频| 毛片免费全部无码播放| 国产男小鲜肉同志免费| 深夜a级毛片免费视频| 国产手机在线αⅴ片无码观看| 国产无遮挡裸体免费视频| 天堂av无码av一区二区三区 | 国产免费人成在线视频| 亚洲av无码一区二区二三区软件| 天天天天躁天天爱天天碰2018| 亚洲av综合av一区二区三区| 无码人妻丰满熟妇区毛片| 国产女主播精品大秀系列| 亚洲av无码一区二区三区dv| 久久精品卫校国产小美女| 久久精品a一国产成人免费网站 | 日韩精品无码久久一区二区三| 开心五月激情综合婷婷色| 疯狂做受xxxx国产| 国产亚洲精品久久www| 日韩av高清在线观看| 亚洲人成网7777777国产| 爱情岛永久地址www成人| 激情久久av一区av二区av三区| 人人摸人人操| 无码国产激情在线观看| 国产综合色在线视频区| 久久婷婷五月综合色欧美蜜芽| 亚洲人成网站在线观看播放| 搡老熟女老女人一区二区| 日本午夜精品一区二区三区电影| 国产日韩精品欧美一区| a人片在线观看苍苍影院| 国产在线精品一区二区不卡麻豆 | 精品久久久无码中文字幕| 午夜男女无遮挡拍拍流水视频 |