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26

2021-09

鉆桿和鉆鋌有什么區別？

鉆鋌(drill collar)處在鉆柱的下部，是下部鉆具組合的主要組成部分。其主要特點(diǎn)是壁厚大（一般為38~53mm,相當于鉆桿壁厚的4~6倍），具有較大的重力和剛度。為了方便起下鉆工作，可以在鉆鋌的內螺紋的外表面加工吊卡槽和卡瓦槽。

2021-09-26

26

2021-09

長(cháng)螺旋鉆機的的質(zhì)量?jì)?yōu)點(diǎn)以及材料要求

??一、長(cháng)螺旋機壓灌砼樁的質(zhì)量?jì)?yōu)點(diǎn) ? ? ? ?1、適應性強：該樁型適用于粘性土，粉土，填土等各種土質(zhì)，能在有縮徑的軟土、流沙層、沙卵石層、有地下水等復雜地質(zhì)條件下成樁。

2021-09-26

長(cháng)螺旋鉆機的的質(zhì)量?jì)?yōu)點(diǎn)以及材料要求

20

2021-09

雙壁鉆桿的定義和優(yōu)勢瑞龍鉆具

雙壁鉆桿有利于穿越復雜地層鉆進(jìn)時(shí), 壓縮空氣在雙壁鉆桿中的循環(huán)恰似一閉路循環(huán)系統, 即便遇到老窿或溶洞, 一旦鉆具到達洞底, 正常循環(huán)也會(huì )立即恢復, 而這在常規鉆探方法中卻是無(wú)法實(shí)現的。

2021-09-20

19

2021-09

中秋節|十五團圓合家歡，中秋月圓話(huà)神仙

中秋將至·花好月圓瑞龍鉆具祝您財源廣進(jìn)、生意興隆中秋快樂(lè )，闔家團圓！中秋節期間正常接單，歡迎咨詢(xún) 400-965-6660

2021-09-19

18

2021-09

九一八事變紀念日 | 勿忘國恥，奮發(fā)圖強！

以史為鑒，振興中華

2021-09-18

17

2021-09

購買(mǎi)地質(zhì)鉆桿你一定要知道的一些常識瑞龍鉆具

2021-09-17

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