福利视频久久_新聞資訊_臨清市瑞龍鉆具有限公司

2020-05

瑞龍立夏|春天再見(jiàn)！夏天你好！

立夏，是二十四節氣中的第7個(gè)節氣，夏季的第一個(gè)節氣。立夏交節時(shí)間為每年公歷5月05－07日，此時(shí)北斗星的斗柄指向東南方，大陽(yáng)黃經(jīng)達45°。

2020-05-27

2020-05

瑞龍鉆具恭祝五四青年節快樂(lè )

●?五四青年節?●??

2020-05-27

2020-05

取芯鉆頭有哪些選用技巧？

隨著(zhù)社會(huì )的不斷發(fā)展，機械制造業(yè)也發(fā)展迅速，電磁鉆的鉆頭也發(fā)生了很大變化。現在，有多種類(lèi)型的硬質(zhì)合金取芯鉆頭可供用戶(hù)選擇，那么取芯鉆頭選用技巧有哪些？

2020-05-09

2020-04

勞動(dòng)最光榮——瑞龍鉆具五一勞動(dòng)節

勞動(dòng)節節日由來(lái)?國際勞動(dòng)節又稱(chēng)“五一國際勞動(dòng)節”、“國際示威游行日”，是世界上80多個(gè)國家的全國性節日。定在每年的五月一日。它是全世界勞動(dòng)人民共同擁有的節日。?1889年7月，由恩格斯領(lǐng)導的第二國際在巴黎舉行代表大會(huì )。會(huì )議通過(guò)決議，規定1890年5月1日國際勞動(dòng)者舉行游行，并決定把5月1日這一天定為國際勞動(dòng)節。中央人民政府政務(wù)院于1949年12月作出決定，將5月1日確定為勞動(dòng)節。?向勞動(dòng)者致敬?高

2020-04-30

2020-04

潛孔鉆頭的幾種端面形式

目前，高壓潛孔鉆頭的端面設計形式主要有四種：端面凸面型、端面平面型、端面凹面型和端面深凹中心型。

2020-04-24

2020-04

金剛石無(wú)芯壓輪鉆頭的特性

金鋼石由碳元素組成，是碳在高溫高壓下的結晶體，它在莫氏硬度中列為硬度10 級。金剛石不僅硬度高，強度大，導熱率較高，而且容易吸收熱量，又能使熱量很快散失。小口徑金剛石鉆進(jìn)是目前水利工程巖石鉆探的主要方法之一。由于鉆探過(guò)程中時(shí)常會(huì )出現燒鉆和非正常磨損等情況出現，影響了正常的鉆進(jìn)。為了提高鉆進(jìn)功效、降低金鋼石鉆探成本，需要提高對金鋼石鉆頭性能的認識、掌握正確使用方法，以減少鉆頭的非正常磨損，提高金剛石

2020-04-24

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