2022国产精品福利在线观看,欧美性大战久久久久久,经典三级电影在线观看,аⅴ中文天堂最新版在线,男人的天堂av网站,一级成人A毛片免费播放,又大又黄又刺激又爽又粗的视频,男人边吃奶边做好爽视频,日韩午夜精品毛片,亚洲图片综合网激情专区

Qingzhou Dahan Heavy Industry Co.,Ltd.
Call me!
Tel:0086 18353659311
Email: Alice@qzdhzg.com
Qingzhou Dahan Heavy Industry Co.,Ltd.
Manager:Alice
Mobile: 0086 18353659311
Skype: Alice Chen
WeChat: 1091767485
WhatsApp: 008618353659311
Tel: +86 0536 8800950
Fax: +86 0536 8800950
Website: m.juliedowns.com
Address: The North Of Yiwangfu North Road, Economic Development Zone,Qingzhou ,Shandong ,China
Home>>news

Requirements for raw material selection of cement pipe making machine


Cement pipe machine named incredible is construction machinery specializing in the production of cement pipe, cement pipe plays an important role in urban construction, because cement pipe machine has become a construction machinery and equipment is an important class of devices.
The cement pipe making machine has the characteristics of good stability, convenient operation and high yield. It is the best equipment for the production of cement pipe. To produce the highest quality of cement pipe, in addition to the technical design of the cement pipe making machine is required, the production of raw material selection also has a clear requirement.
Cement pipe machine production cement pipe is mainly used as raw materials of cement, sand and stone, mainly has the following requirements:
1 cement
Should be chosen as the Portland cement 425 label. Because of the hanging roller tube using dry hard concrete, water cement ratio is relatively small, the drying shrinkage of cement volume change small, with the unilateral cement dosage is not high, so generally do not appear shrinkage cracks, due to the initial setting time of the cement is relatively short, high early strength, for stable density of concrete to prevent collapse of wall and improve the steam curing is good.
2.
Generally used in the sand, concrete and easy good, good impermeability, and concrete strength low, pipe is easy to collapse; coarse sand, concrete and easy bad, good impermeability, and the mixed high strength, pipe is not easy to collapse and sand ratio of choice is also very important, high sand ratio, concrete and easy to good, good formability, good impermeability, of concrete in the tube is easy to collapse; low sand ratio, concrete and easy to poor, forming poor, poor impermeability, concrete pipe is not easy to collapse.
3 Stone
Small caliber suspension and tube with gravel or crushed gravel, to reduce the friction resistance of the stone surface, easy compaction of concrete, large caliber suspension and tube should be the machine broken stone, the stone surface roughness easily are embedded and fixed the, to alleviate the collapse of concrete possible.
page up:Steam curing process of cement pipenext:Method for effectively improving the efficiency of cement pipe making mechanism
product centers
Contact us
manager:Alice 0086 18353659311
Address:North End Of Yiwangfu North Rd., Economic Development Zone, Qingzhou, Shandong, China (Mainland).
Website:m.juliedowns.com

Follow sweep the DAHAN Heavy Industries official website For more details, please have a call.
Copyright ? 2005-2015 青州大漢重工有限公司All Rights Reserved  技術(shù)支持:山東中迅.濰坊百度
洞口县| 上虞市| 苍南县| 肥乡县| 林州市| 禄丰县| 庆阳市| 平乐县| 本溪市| 朝阳县| 寻甸| 镇宁| 平凉市| 普陀区| 江都市| 江孜县| 额敏县| 运城市| 东至县| 平顺县| 新乡县| 永清县| 运城市| 平利县| 萨迦县| 错那县| 高密市| 宜兰县| 大渡口区| 新昌县| 黄龙县| 盖州市| 仁布县| 襄樊市| 天津市| 浦东新区| 曲松县| 库车县| 峨眉山市| 孝感市| 武夷山市|