A well screen is a filter device used as the suction portion of a well constructed in a loose or semi-consolidated aquifer. The screen allows water to enter the well from the saturated aquifer, prevents sediment from entering the well, and acts structurally as a support for the aquifer material. When considering well efficiency and the logarithmic cost to the well owner, the importance of having the right screen cannot be overemphasized.
The sieve is resistant to corrosion because it comes into contact with water. In addition, it has high strength and can keep the surrounding structure intact. The openings of the sieve can be small enough to block the large amount of formation around them. The flow of water through the screen will be uniform.
Well screens are recommended for all environmental drilling operations. It helps extend the life of the well and keeps the flow of water unrestricted. Sand and fine powder sand, these fine particles can be filtered out before there is water. Well screens help remove most of this fine material from well water.
Well screens are made from a variety of materials, ranging from rough-hewed hand designs to machine built high-efficiency and long-life models. The value of the screen depends on how much it contributes to the success of the well.
Standard:
- Large open Spaces
- Do not block the slot
- 3.corrosion resistance
- Sufficient column and collapse strength
Functions:
- Easy to develop
- Minimal scaling tendency
- Low head loss through the screen
- Control sand pumping of all types of aquifers
Slot size selection is a critical step to ensure maximum well performance. The screen is usually designed to block 50% of the stratum, and the entry speed for the screen should not exceed 1/10 or 0.1 ft per second. The velocity is calculated by dividing the well production in GPM by the screen open area in square inches.
The gap size of the screen is based on dimensional analysis of the formation sample. After analyzing the composition size of grain in the sample, grain size distribution curve
I can draw it. Several methods can be used to obtain the allocation of information about grain size. The most widely used method is to pass the material through a stacked set of brass or stainless steel sieves. During the screening process, each sieve removes a certain percentage of the whole sample; The best materials are collected in the chassis. Screening analysis not only provides the basis for determining slot sizes, but also other factors that influence screening well design.
Steel grating is generally made of carbon steel, and the surface is hot-dip galvanized, which can prevent oxidation. It can also be made of stainless steel, and the steel grating has the properties of ventilation, lighting, heat dissipation, anti-skid, explosion-proof and so on.
Steel grating is a kind of steel product with square lattice in the middle, which is cross-arranged with flat steel according to a certain spacing and horizontal bars, and welded by pressure welding machine or manually. Steel grating is mainly used as gutter cover. , steel structure platform plate, steel ladder step plate, etc., the cross bar is generally made of twisted square steel.
Advantages of steel grating fence
Material saving: the most material saving method under the same load conditions, correspondingly, the material of the supporting structure can be reduced;
Reduce investment: save material, save labor, save construction period, free of cleaning and maintenance;
Simple construction: on the pre-installed support, it is fixed with bolts or welding, and it can be completed by one person;
Save construction period: the product does not need to be reprocessed on site, and the installation is very fast;
Durable: It has been hot-dip galvanized anti-corrosion treatment before leaving the factory, and has strong impact and heavy pressure resistance;
Modern style: beautiful appearance, standardized design, ventilation and light transmission, giving people an overall smooth modern feeling;
Lightweight structure: less material, light structure, and easy to hoist;
Reduce wind resistance: due to good ventilation, the wind resistance is small in case of strong wind, reducing wind damage;
Anti-contamination: no rain, snow and dust;
Other advantages: ventilation, lighting, heat dissipation, explosion-proof, good anti-skid performance;
Simple design: no need for small support beams, simple structure and simplified design
Acid and alkali corrosion ability: in the range of PH 6 to PH 12.5, a stable protective film is formed on the surface of the zinc layer, and the corrosion resistance is good.
Steel grating use
Steel grating is suitable for alloys, building materials, power stations, boilers, shipbuilding, petrochemical, chemical and general industrial plants, municipal construction and other industries. It has the advantages of ventilation and light transmission, anti-skid, strong bearing capacity, beautiful and durable, easy to clean and easy to install.
Steel grating has been widely used in all walks of life at home and abroad, mainly used as industrial platforms, ladder treads, handrails, passage floors, railway bridge sideways, high-altitude tower platforms, drain covers, well covers, road grilles, three-dimensional It can also be used as a fence for parking lots, institutions, schools, factories, enterprises, sports fields, and garden villas.
Tianjin Long Feng Yuan Metal Material Trade Co., Ltd is the subsididary company of HUAYE GROUP LTD founded in 2004, China. It is engaged in steel trading, retailing, processing and distributing as one of the professional companies.
Our company main product:hot dip galvanized steel,color coated coils,tin plate, pickling coil,cold-rolled plate and other relative steel products. Our management objective is “Down to earth, hold the world with virtue”. We already established a long-term stable relationship with a lot retailers and agents for many years. Our company is powerful. We win the trust of our customers with good credit and high quality products.
Our customers are from the entire world, such as, Southeast Asia, Africa, South America, Middle East, and Europe. Main importing countries like Korean, Chile, Turkey, Brazil, Singapore, Australia, Spain, Ukraine, Russia, Thailand, Philippines, India, UAE, Saudi Arabia and so on.
We are looking forward to forming successful business relationships with new clients around the world in the near future.
IBC GROUP is dedicated to transforming various metal materials all over the world, through the process of coils, steel sheet, steel pipe, wire, profile,Alloy steel, all variety of metal products to the construction and wide manufacture industry. Meanwhile, because maintain long term friendly business relationship with clients. Enjoy solid trust from our regular clients, already working one-stopstation service in other construction related products Such as metal process equipment .All Enjoy highly comments from our customers.Look forward the chance to develop together.
Sinochem Tianjin Steel Union Steel Co., Ltd. in North China is a professional stainless steel plate, steel pipe sales of modern enterprise. The company’s main stainless steel products; sheet, pipe, bar, angle, channel, flat steel, cold-drawn yuan, hexagonal and the like.
Since its inception has always insisted “quality of survival, product development, reputation and security cooperation, service to win customers” approach to business, made all my colleagues dependence.
Sales: Northeast Special Steel, Walsin, long-established steel, Wenzhou Baofeng, Wenzhou prosperity, TISCO, Po, Zhang Pu
Business philosophy: “the same product than the quality, the same quality than price, the same price than service, the same service than credibility.” Enterprise spirit: “unity and hard work, hard work, dedication, pragmatic and innovative” Companies seek sincere cooperation in a wide range of areas in order to improve the overall strength of the enterprise. Stainless Material: 1Cr17Ni7 (301), 0Cr18Ni9 (304), 1Cr18Ni9Ti (321), 201,304,304LN, 316,316L, 316LN, 321,309S, 310S, 317L, 904L, 409L, 0Cr13,1Cr13,2Cr13,3Cr13 stainless steel products.
Our products are widely used in chemical, electric power, coal, machining and boiler manufacturing and other industries, customers can build special materials, special thick-walled seamless tube and alloy tube, do not want steel, stainless steel, precision light and stainless steel pipe, spiral tube, pipe and so on. With the development and construction of Binhai New Area, Sinochem Steel Union facing a rare historical opportunity for development, we are willing to provide customers with the highest quality products and services, sincere cooperation with all the friends together for a better tomorrow.
Double-twist stranding machines, high-performance twisting machines
Double Twist Stranding Machineare effective, compact production units primarily for use in the manufacture of highly flexible braids, bundled braids, for stranding pairs of wires, triples, quadruple designs …
The machine concept differs from the single-twist system in that one rotor turn generates two cable twists / turn. The braid is given the first twist at the stranding point of the system feed. At this point, the stranding material still has twice the length of lay of the desired final geometry. The final braid length of lay with the second stranding twist is only completed at the second turning point, before being introduced back into the static coil former.
BOW DOUBLE TWIST STRANDING MACHINE
Application for:
Multistrand 7 or 19 copper wire, aluminum wire, tinned copper conduct etc. Also multistrand insulated conduct for power cable, data cable, control cable etc. Laying up of 2/3/4 cores of small size building wires.
Bow Double Twist Stranding Machine Description:
Payoff
Double twist stranding machine
PLC control system with color touch screen
Advanced function (Optional):
1:Motorized payoff or back-twist payoff, tension keep stable from start to end.
2:Bow material : carbon fibre
3:Brake: serve motor
4:Motorized driven capstan. Lay length set on touch screen, no need to change gear mechanically.
5:Auto lubrication system: regularly lubricate important parts to prolong machine service life.
COMPUTER SIMULATION OF AN INDUSTRIAL WIRE DRAWING PROCESS
Wire Stranding Machine is an important industrial process. Wires are reduced in diameter through a series of die/capstan combinations which provide the desired reduction steps. Typical wire drawing machines within BICC Cables Ltd use up to twenty-one dies in one line and it is necessary to optimise the die drafting for each machine and final wire diameter to obtain good machine efficiency and high quality product. An important aspect in the manufacturing process is to avoid wire breakages with the resultant loss of production due to short final lengths and the associated time required to restring the drawing machine. In order to optimise the conditions for each machine and wire size, computer simulations of the process are used to predict performance by estimating factors such as the ratio of drawing stress to ultimate tensile stress, drawing force, back tension and heat generated.
A computer simulation of the multi-line wire drawing process for copper wire has been modelled by the Wrexham Technology Centre of BICC Cables Ltd using a bulk model. The redundant work during the drawing process was included by formulation and equations for the redundant deformation were derived that were in good agreement with published experimental work.
A new computer simulation has been developed to predict the performance of wire drawing process. The model uses a one dimensional explicit finite difference method to determine the plastic deformation in the dies. The redundant work formulation was used as in the previous simulation. This paper describes the numerical methods used and compared the results from the new computer simulation with the previous bulk model. Significant differences are predicted in the stress ratios, drawing force and heat generated for process predictions. The new simulation of the plastic deformation in the dies also indicated optimum semi-die angles away from the traditional eight degrees.
7 Wire Tubular Type Stranding Machine
Owing to the vast industry experience and in depth knowledge of this domain, we are offering a huge collection of high quality 7 Wire Tubular Type Stranding Machine. These products are manufactured using optimum quality raw material. These products are easy to install and requires low maintenance. Customers can avail these products from us at market-leading prices
Basket Type Stranding Machine
Basket Type Stranding Machine is mainly used to strand not only copper/aluminum conductor for the electric wire and cable but also the cable core, steel core, and steel rope. Machine’s make-up: pay-off, driving part, cylindrical part, hydraulic brake device, wire –bobbin frame, die-holder, haul-off device, spindle-type take-up/traversing (Φ50 bar traversing) and an electrical control part, etc.
Rigid Stranding Machine
The Rigid Stranding Machine is used for stranding CU, Al wires, and conductors. Stranding unilay and reverse concentric, round, compressed, compacted or sector-shaped ( straight or spiraled) as per customer requirements.
Main features:
Self-supporting rigid rotor design with 1 6 12 18 24 30 36 Bobbin Cage
High efficiency and speed
Bobbins mounted on pintles
A line drive by A.C. or D.C. motors with electronic or mechanical synchronization between line components.
Different braking device for bobbins
Centralized lubricating system for bearing
Disk type Pneumatic brake for Cage.
Machines with or without back twist
MMI /PLC Equipped, optional
Easy Lay Setting
High Speed Tubular Stranding Machine
High Speed Tubular Stranding Machine with back twist, for 1+6 Bobbin copper / aluminum round & compact conductors and steel wire stranding. This strander is for manufacturing high carbon & low carbon steel wire rope, copper & aluminum conductor
Bow Type Stranding Machine
The Bow Type Stranding Machine is suitable for a wide range of productions, obtained with high speed and productivity; the back twist process gives high quality products. The Bow stranders use components made with most modern materials, like carbon fiber for the bows, tungstene carbide for bushes, hardened steel for rollers.The control of tension of the cores is assured with electro-mechanical or pneumatic self compensated brake, with set up by control panel.The safe use is assured with control of bearing temperatures and supports vibration.The machine is protected with a soundproof cover, with pneumatic open, inside fans and lights.Is possible the bobbins side loading with a motorized trolley, that avoids the use of bridge cranes and reduces dramatically the total loading time of the line.
For Cables Industry:
Stranding of conductors made with copper, aluminium, aluminium alloy, aluminium steel reinforced or supported;
Laying up of 2 – 7 round insulated cores for low and medium voltage;
Laying up of 2 – 7 straight sector shaped insulated cores, with the rotating cradles version;
Possible application of fillers and tapes of every type.
Tubular stranding Machine
The Tubular Stranding machine consists of bearing stands made of welded steel for the tube bearings. Up to reel size of 630mm .The stranding rotor is built up from welded tubes with wire guidings outside the tube. The reels are held in cradles, which are positioned inside the tube. A light beam along the complete length of the machine monitors, if the pneumatically (optional)operated reel-pintles are securely closed and the cradles are in safe condition. The machine is equipped with wire break detectors for each segment, pneumatic disk-breaks and individual drives for the Stranding Rotor, the Capstan and the Take-Up. The operator’s desk gives full control over parameters like Rotor-speed, lay-length and production length.
Main Features:
• Machine placed on a Rigide steel frame with rotor support, fixed on the floor for an easy installation
• Tube rotating on encircling bearings or rollers
• Machine able to work in torsion or total back twist with the possibility of partial back twist
• Wire back tension kept constant from full to empty spool payoff
• Wire/strand break detector for each payoff unit(optional)
• Spool loading/unloading by crane
• Pneumatic pintles equipped with safety locking system
• Independent driving motors for tube, capstans and takeup units
• A.C. motors with flux vector control inverter
Beijing Shenghe Zhongtai Stainless Steel Co.,Ltd was established in 2009 and located in Beijing, China. In the past 9 years, we have focused the Stainless steel material and surface finish. We have passed the ISO9001 test in 2011, and applied the brand of “SUNSONG”in same year. Following the company developed by 2016, we have built our manufacturing base of Hebei Shengnuo Metal Products Co.,Ltd In Hebei province which is the biggest manufacturing base for Stainless steel surface treatment in North of China.
We have imported the advanced cutting equipment to do the coil cutting and flatting. And we have all process machines such as Hairline finish, 8K finish, Bead blasted, Vibration, Anti-finger print, PVD machine and Bending machine, Laser cutting machine.etc. Especially only we could do the surface treatment for the with more than 1500mm.
And our factory covers an area of more than 16000 square meters, introduces advanced equipments such as CNC shearing machine, keyway planer, Bending and laser machine, provides full-service of stainless steel processing. Our annual outputs has exceeded 3000 mts. We are capable to provide one stop services for architecture stainless steel decoration from stainless steel surface treatment, processing, fabrication, assembly and installation.
SUNSONG Decorative Stainless Steel Sheets is neat and beautiful which widely used into kinds of outside decoration of buildings and elevator decoration. We could do many treatment on the Hairline surface such as etching, PVD and so on. The surface would be different and welcomed by customers.
For more, please click here to customize your stainless steel furniture decoration.
Tata Steel Ltd. is a geographically-diversified steel producer. The company’s products include hot and cold rolled coils and sheets, galvanised sheets, tubes, wire rods, construction rebars, rings and bearings. The company has a position in the construction, automotive and packaging markets. Established in 1907, Tata Steel Ltd. has operations in 26 countries and a commercial presence in over 50 countries.Tata Steel has large production facilities located in India, UK, Netherlands, Thailand, Singapore, China…
Anping County Anlida Metal Wire Mesh Co., Ltd. was founded in 2001 in July and was formally established company in 2006. Which is located in Anping County, Hengshui City, Hebei Province, next to the da guang express way. It is “the quality standard of qualified enterprises” Hebei ProvinceChina construction metal doors and Windows, curtain wall industry “innovative enterprise”, the national federation of industry and commerce hardware mechanical and electronic chamber of commerce building metal doors and Windows, curtain wall) committee “vice President of units, commodity wholesale market in the development of China market society committee” merchants nationwide credit management model “, “member of” China hardware products association.
Our products:Expanded Metal Mesh,Aluminum Metal Mesh,Perforated Metal Sheet,Grating,Wire Mesh, etc.
The development direction of the company has a perfect IS09001 international quality management system, and has a group of senior team full of enthusiasm, including experienced, technical comprehensive, excellently engineer, technician team. They constitute the company’s a strong backing.
The company has also quality control in production process and a full range of testing test equipment, which makes that the quality of products can be guaranteed for a long time .We sincerely thank the customers who have given us support and love over the years. We hope to get your continued support, as always, we will provide you with the best quality products and services.
PEILING TECH. based in Hebei province of China and established in 2007.
We have set up our competitive advantage in the world market like garden hardware products/ fence system products / pet products and so on. Professional team, scientific management system, all of which have guaranteed us the leading position in garden field, our main market are America, Europe and Australia.
Our enterprise spirit are” focus, professional, innovation, customer first, sustainable development.”, exactly as” Specialty, Creative, Service “. We insist that” High quality is company’s greatest repayment; satisfaction of customer is the ultimate aim of us”. We devote to help our customers to be the best in their own market with our most competitive products and best service.
Our company specialized in Kennel, Wire Mesh, French Gate, Bar Gate, Entrance Door, We offer customized services, please via:https://www.peilingtech.com/
Quintain Steel Co., LTD. was founded in 1973, began with producing galvanized wire (now Yung-Kung Plant), which is adopted widely in agriculture, construction, processing industries and mesh-making. In order to increase added value of the product and promote quality, Ma-Tou Plant has been expanded to produce spheroidize annealed wire for screw industries since 1989. In 1992, Quintain Steel Co., LTD. was established as a publicly-listed company. For integrating upstream and downstream industries, stabilizing…
Hebei Jinzhou City Gold Garden Metal Co., LTD. Was established in 1988, supply full specifications of galvanized wire,annealed black wire, Covers an area of 33.5 thousand square meters, construction area of 20,000 square meters, the total number of enterprise employees 185 people, including professional and technical management personnel 28 people, senior engineer 6 people, annual production capacity of 16,000 tons.
and the products are exported to USA, Germany, Japan, South Korea, Indonesia and other countries and regions, won the domestic and foreign general customers.
VSL is one of India’s leading manufacturers of MS ERW Black and Galvanised Pipes, having a capacity of 7500 TPA, in a size range of 1/2″ to 4″ (15 mm to 100 mm), in light and Medium class, as per IS: 1239 (Part-I) 2004, BS 1387/85, BS 1139 and DIN specifications, suitable for various industrial and household applications.
VSL also produces Precision Tubes made of CRCA, to meet the needs of the Automobile Industry and the General Engineering Industry. Vallabh Steels is renowned across the globe as a leading exporter of Galvanised Pipes from India, having attained Export House status from Government of India.
Apart from tubes, VSL produces CR Coils and Stips in varying widths of up to 1020 mm, and with a thickness ranging from 0.14 mm to 3.00 mm, catering to the precise requirements of the Automobile Sector, White Goods Sector and the General Engineering Industry.
Founded in 1993, focused on the steel domain, Concast is a cross-sector leader with customer-focus, global quality standards as its key mandate. From being a pioneer in branding TMT Bars and occupying a pre-eminent position in the secondary steel sector in India – Concast is emerging as a diversified leader with robust investments of resources in state-of-the-art design & engineering, production, R&D, product testing & validation and top of the line HR practices.
The conception of Concast Group began with global excellence in steel& minerals and was later extended to the sectors of infrastructure and food.
Its manufacturing unitsare ISO 9001:2000 certified; every business is complemented with sound financial depth and apt human resources.
Concast, today, in its annual business of over 2 Billion Dollars and 10,000 employees is a legacy to explore not just growth but sustainable growth via pioneering efforts, customer orientation and integrity.