The microfiltration machine is a screen filter that intercepts fine suspended solids. It has a drum-shaped metal frame. The drum rotates around a horizontal axis and is supported by a braided stainless steel wire (or copper wire or chemical fiber wire). Network and work network. It can be used for filtration of raw water in water plants and removal of algae, water fleas and other plankton. It can also be used for filtration of industrial water, recovery of swimming substances in industrial wastewater, and final treatment of sewage. Microfiltration Machine,Inner Flow Rotary Drum Microfiltration Machine,Fully Automatic Microfilter,Osmosis Water Treatment Changzhou Senjie Environmental Protection Equipment Co., Ltd. , https://www.senjie-hb.com
Bolts play a vital role in the manufacturing and construction industries, serving as essential components in the assembly of complex machinery, bridges, and buildings. Their robust structure ensures they can withstand significant stress, making them indispensable for maintaining cohesion in various items. These fasteners are designed to be inserted through holes in assembled parts and typically tightened or loosened by turning a nut.
The world of bolts is diverse, with numerous types differing in shape yet sharing common characteristics. Most bolts consist of a threaded cylindrical rod, featuring a head at one end and often a nut at the other. Among these, hex bolts stand out due to their six-sided hexagonal head, offering versatility across a wide range of applications.
Hex bolts come in various metric and imperial sizes, providing flexibility for different industrial requirements. They are manufactured with a variety of finishes, such as zinc yellow, hot-dip galvanized, plain, zinc-plated, mechanical galvanized, and stainless steel, ensuring compatibility with diverse environmental conditions. Their thread types include UNC, UNF, SAE, and BSW, accommodating various engineering specifications.
When it comes to tolerance, stainless steel hex bolts adhere to strict standards. For instance, their nominal screw size and length must meet precise tolerances to ensure reliability and performance. The tolerance for a 1/4-inch to 3/8-inch bolt over lengths up to 1 inch might be ±0.02, -0.03, whereas for longer bolts, the tolerance increases accordingly.
The head type of high-tensile bolts varies based on application. Hex heads are commonly used in building structures and machinery, while socket heads are ideal for confined spaces. Flat heads suit woodworking, pan heads are prevalent in electronics and machinery, and round heads serve decorative purposes. Other head types like torx, slotted, phillips, wing, square, dome, and knurled cater to specific needs, such as reduced torque or manual adjustments.
Flange bolts are another critical component, particularly in applications requiring high-temperature resistance, such as those found in class 150 to 1500 flanges. Their unique design facilitates better weight distribution, enhancing safety and reliability. For example, a class 150 flange might require four bolts with a diameter of 1/2 inch for nominal pipe sizes up to 1 inch, while larger sizes may demand more bolts and longer lengths.
SS flange bolts offer several benefits, including improved load distribution, increased load-bearing capacity, simplified assembly, cost-effectiveness, reduced loosening, and enhanced aesthetics. These attributes make them a preferred choice in demanding industrial settings.
Eye bolts, primarily used in light-duty applications, feature a simple structure comprising a threaded shaft and an eye at one end. They are typically inserted into structures like wood or steel supports, secured with a nut, and used to sustain ropes or cables. Eye bolts come in various types, including standard, shoulder, heavy-duty, swivel, marine, drop-forged, lag, metric, safety, and rigging eye bolts, each tailored to specific applications ranging from construction to marine environments.
T-head bolts, also known as hammer-head bolts, boast a distinctive "T" shape that prevents rotation during installation. Adhering to standards such as ASME B18.3 ensures their dimensions, strength, and features align with intended use cases, minimizing risks of failure and costly repairs. Dimensional standards and tolerance specifications further ensure their reliability across different series and materials.
J anchor bolts are widely utilized to secure walls to concrete, available in various sizes, finishes, and materials to meet diverse application needs. They simplify installation compared to other anchoring methods, allowing easy removal and replacement without damaging adjacent materials. Types of J bolts include standard, heavy-duty, L-shaped, corrosion-resistant, anchor, threaded, lag, metric, and custom options, each suited to specific construction, structural support, foundation anchoring, industrial, marine, landscaping, and agricultural applications.
Hex head anchor bolts find extensive use in interior applications, such as stabilizing structural elements by fastening columns, beams, and posts to concrete foundations. Similarly, stainless steel anchor bolts excel in exterior environments, providing durability against harsh weather conditions. Both types require precise dimensional specifications, such as a diameter of 12 mm, a length of 120 mm, and a drill bit size of 12 mm.
Elevator bolts undergo rigorous testing to ensure quality and safety, including manufacturer test certificates, hardness testing, suitability tests, nut proof load testing, calibrated gauges, tools, and impact testing. Lag bolts exhibit varying tensile strengths based on material, ranging from 60,000 psi for standard steel bolts to 150,000 psi for alloy steel bolts.
Plow bolts offer advantages such as increased wear resistance, greater installation spin resistance, tighter body tolerances, deeper thread engagement, and a tighter fit in countersunk holes. Machine bolts and stud bolts differ in definition, application, types, strength, material, and usage examples, catering to distinct engineering requirements.
Arbor bolts exhibit impressive strength and durability, with material strengths ranging from 60,000 to 150,000 psi depending on the alloy. Their precision-cut threads, high-grade materials, excellent corrosion resistance, and wear and fatigue resistance make them suitable for demanding applications.
Blind bolts, characterized by their high tensile strength and zinc yellow finish, are ICC ESR certified, ensuring compliance with stringent standards. Carriage bolts possess physical properties such as Rockwell hardness, tensile strength, proof load, yield strength, elongation, and reduction of area, meeting industrial standards.
Rock bolts stabilize unstable rock formations, tensioned to enhance shear strength and overall stability. Serrated flange bolts incorporate technical specifications, with tolerances and dimensions meticulously defined for various sizes, ensuring optimal performance.
Shoulder screws differentiate between commercial and precision grades, with the latter offering superior materials, higher strength, tighter tolerances, and specialized applications. Socket head bolts encompass various head types, including cap, flat, button, oval, and cheese head screws, each suited to specific industrial needs.
Square bolts find application in industries such as chemical, oil and gas, petroleum, aerospace, nuclear energy, and automotive sectors. Surface treatments for U bolts include anodizing, sandblasting, passivation, polishing, rust preventive oil, black oxide coating, heat-disposing, and hot dip galvanized processes.
Toggle bolts exhibit key characteristics such as variable sizes and lengths, weight capacity, load capacity dependent on size and wall thickness, and installation requiring pre-drilled holes. Their advantages include strong holding power in hollow materials, though they require larger holes and may not suit very thin walls.
Track bolts display tensile strengths ranging from 60,000 to 174,000 psi, corresponding to grades 4.6 to 12.9, ensuring robust performance in diverse applications. Each bolt type contributes uniquely to the broader field of fasteners, fulfilling specific roles in modern engineering and construction practices.