provided to lighten an excavator using a controller for securing torque of the rock drilling device and to perform a drilling work at one position.;CONSTITUTION: A rock drilling device using a core drill comprises a connection frame(1), a core drill(2), and a core drill lifting unit(3)....
23319 Bond performance of Injection type anchor method using Core drill : Part 3 Bond Performance of the Other Materials and Transverse Construction HIWATASHI Takeshi , ARIKI Katsuyoshi , WATANABE Kazuhiro , SATO Shinichiro , AKIYAMA Tomoaki Summaries of technical papers of Annual Meeting Architectural ...
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PURPOSE:To improve the work efficiency by using a hollow drill which absorbs and discharges powdery or granular chips and maintaining coolness of the drill. CONSTITUTION:A drill 1 has a hollow part 2 along the core of its shaft and said part 21 is opened to a blade edge part 10 and a ...
CWDA35045010 350mm 10 1 1/4"-7 450mm 3.Features Manufacturer technology: laser welded Suitable: wet drilling concrete, reinforced concrete, masonary with superior efficiency. Advantage: very good sharpness achieve fast drilling, especially very fast when cutting steels meanwhil...
Core–shell structure Antibacterial Angiogenic Nanofiber Diabetic wound 1. Introduction Diabetes is a common metabolic disease that affects over 400 million individuals globally, resulting in promoted hyperglycemia [1], [2]. When poorly controlled, diabetes can cause serious complications including impaired...
Drilling is the mostly used secondary machining of the fiber reinforced composite laminates, while the delamination occurs frequently at the drill exit in the workpiece. In the industrial experiences, core drill shows better drilling quality than twist drill. However, chip removal is a troublesome pro...
Provided are an outer-diameter blade, an inner-diameter blade and cutting machines using both blades for cutting hard material, and a core drill and a core-drill processing machine for forming a hole into hard material, whereby the mechanical processing with reduction in the cutting and/or conta...
A portable drilling machine (Fig. 6) was developed and used to estimate required parameters for developed analytical model. In this case different rock samples ranged from weak to medium and high strength values are selected and examined. The machine is able to drill in both field and laboratory...
A CNN-based approach is developed to classify core images into three lithologies: sandstone, limestone, and shale. The model is based on ResNeXt-50 architecture, which had better performance in lithology prediction than ResNet-18 and Inception-v3 architectures. Our method processes core tray ...