14 perforación


(1) When using the drilling rig to drill, the driver should be placed in the drilling position, so that the front end is against the rock, and the distribution should be careful to let the drilling rig move forward, so that the drill bit touches the rock; When opening the hole, first quietly let the drilling rig drive, when the drill rod is in place in the rock, it is allocated to the full open position.
(2) Before starting the drilling rig, check whether the charging pressure of the accumulator is normal; Check whether the scouring water pressure and the lubricating air pressure can be; Check whether there is sufficient lubricating oil in the lubricator, and whether the oil supply is appropriate; Check the reverse tendency of the oil pump motor. (3) If the drilling rig cannot open the hole smoothly, it should first assign the rock drill to retreat, and then let the rock drill move forward to open the hole from the beginning.
(4) When replacing the drill bit, the drill bit should be gently pressed against the rock, so that the motor of the drill can be reversed to complete the sensitive unloading head.
(5) The inspection of hydraulic components can only be prevented under the condition of pole cleaning, and after the connecting tissue is removed, it must be quickly plugged with the cleaning tightly matched plug. Before the repaired rock drill is used from scratch, it is necessary to circulate the hydraulic oil into the oil circuit to wash the components of the hydraulic system.
(6) The oil level and oil supply of the lubricator should be checked regularly; The gear with reverse structure is regularly filled with high-temperature grease; Check the oil level in the lubricating oil tank regularly and remove the dirt in the oil tank

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Submarine hammer drilling, often referred to as underwater percussion drilling, is an advanced technique utilized primarily in marine construction and resource exploration. This method combines the principles of traditional drilling with hydraulic and pneumatic operations, enabling the effective penetration of hard substrates beneath the sea floor. In this article, we will explore the processes, equipment, advantages, and applications of submarine hammer drilling.


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  • Despite its small size, the Cub Leather Sewing Machine packs a punch when it comes to performance. It is designed to handle a wide range of leather thicknesses, from lightweight to heavyweight materials. This makes it suitable for sewing leather bags, wallets, belts, and even shoes.
  • One of the primary features of a needle feed sewing machine is its enhanced fabric handling capability. The machine’s needle feed mechanism allows it to handle a wide range of materials, from lightweight fabrics like silk to heavier materials like denim and canvas. This versatility makes it an ideal choice for a variety of sewing applications, including garment manufacturing, upholstery, and leatherwork.


  • Moreover, a walking foot is beneficial when working with fabrics that have a tendency to stretch or shift, such as knits or certain types of lightweight materials. This foot can help maintain the integrity of the stitch and keep the fabric from distorting as it passes through the machine.


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  • - Walking Foot Mechanism A walking foot is essential for sewing multiple layers of leather, as it helps maintain even tension across the fabric. This feature can prevent puckering and ensure a smooth finish.


  • Another significant advantage of computerized sewing machines is their ability to offer precise control over stitching speed and tension. Many models allow users to adjust these settings through a simple interface, ensuring consistent results across different fabrics and thread types. This level of control is particularly beneficial for applications that require a delicate touch, such as working with silk or lace.


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  • While technological advancements have introduced sophisticated sewing machines into the upholstery world, the hand sewing machine remains a cherished tool among many artisans. It embodies the spirit of traditional craftsmanship, allowing artisans to imbue their work with personal touches. The ability to sew by hand provides a connection to the past, reminding upholsterers of the time-honored techniques passed down through generations.


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  • Another advantage of a long arm zigzag sewing machine is its speed and efficiency. These machines are designed to sew quickly and accurately, saving users time and effort. The extended arm also allows for faster sewing speeds, making it possible to complete large projects in less time. This speed and efficiency make long arm zigzag sewing machines ideal for quilters and other sewers who need to complete projects quickly.
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  • In an era where sustainability and efficiency play pivotal roles in the manufacturing sector, the demand for high-quality packaging solutions has never been greater. One significant player in this field is the PP (Polypropylene) woven bag stitching machine, a specialized piece of equipment that facilitates the production of durable and eco-friendly bags. This article delves into the functionality, advantages, and growing importance of PP woven bag stitching machines in today’s manufacturing landscape.


  • Chain stitch is a type of stitch formed by a series of interlocking loops. Unlike traditional lockstitch, chain stitch provides a unique elasticity, which is particularly beneficial in the production of stretchy fabrics, such as those used in activewear and swimwear. The double needle variant utilizes two needles that operate simultaneously, allowing for a neat, parallel stitching pattern that enhances the aesthetic of the finished product while also providing additional strength.


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  • Moreover, the lockstitch machine has played a pivotal role in the global economy. It revolutionized the textile industry, enabling mass production of clothing, thereby making fashion accessible to a wider audience. The efficiency of these machines also contributed to the Industrial Revolution, reshaping labor dynamics and societal structures.
  • One of the main advantages of using a hand crank patcher sewing machine is its portability. Since it does not rely on electricity, users can easily transport the machine to different locations without the need for a power source. This makes it ideal for small sewing projects or for individuals who travel frequently and need a convenient way to sew on the go.
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