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| هندسة الفلزات والبترول والمناجم ................ بإشراف : محمد حمزه, هانى شرف الدين |
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LinkBack | أدوات الموضوع | تقييم الموضوع |
24-03-2007, 12:30 AM
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مجهود رائع
__________________
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05-04-2007, 10:43 PM
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أبحث عن ملفات مرئية عن الدرفلة
نرجو المساعدة
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07-04-2007, 11:45 PM
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هذه الباقه الثانية
هذه الباقه الثانية وتتعلق بعمليات تصنيع الصلب من الألف للياء Friday May 28 <LI class=stdlist>f01-friday-audio-location.wmv (400k) Donald introduces his three guests from this morning's audioconference, held outside the melting plant, at New Zealand Steel's Glenbrook Mill. <LI class=stdlist>f02-melter-electrodes.wmv (2.4mb) The electrodes that provide electricity for the melter are big. Not just big, huge. And there are six of them! In this video watch carefully and you'll see the electrode - yes that large cylinder next to Hoani - move slowly up and down. What is the current travelling between each pair of electrodes? <LI class=stdlist>f03-melter-feeding.wmv (2.4mb) High above the melter - on the same level as the electrodes - are containers that feed the melter with the reduced primary concentrate (RPCC). The RPCC is the reduced iron sand from the rotary kilns- now iron in a powder form along with char (carbon from the coal). This mixture is fed automatically into hoppers above the melter, in 20 tonne containers. <LI class=stdlist>f04-melter-roof.wmv (1.6mb) Donald and Hoani are on the roof of the melter. Hoani describes what you can see: the electrodes, the gas offtake and the screw feeder body which feeds the reduced primary concentrate (RPCC) into the melter. <LI class=stdlist>f05-metal-side1of4-taphole-before-tapping.wmv (1.4mb) On the metal side of the melter (the side the iron is taken from) Randall explains how the molten iron will be removed from the melter. The iron comes out of the tap hole and flows down the launder (a drain) into a ladle. Why is the gas flame being directed onto the launder? <LI class=stdlist>f06-metal-side2of4-mudgun-and-mud.wmv (1mb) Randall shows how the tap hole is closed off to stop the molten iron flowing. What are the special properties of this mud? <LI class=stdlist>f07-metal-side3of4-taphole-monitoring-lancing-ladles.wmv (3.8mb) Stand back! Randall explains as the melter is tapped and molten iron flows into the ladle. During the process a sample of iron is taken, the temperature of the molten iron is taken, and the tap hole is lanced with pure oxygen. Eventually a kress appears to take the ladle to the weighbridge and then to the steel plant. How long does it take to fill one ladle? <LI class=stdlist>f08-metal-side4of4-diverting-to-second-ladle-weighing-the-ladle.wmv (3.1mb) The first ladle is full and the sand dam has to be broken to allow the molten iron to drain into the second ladle. Why is there lots of fumes? <LI class=stdlist>f09-slag-side1of3-taphole-before-tapping.wmv (2.3mb) On the slag side of the melter (the side opposite the metal side) where slag is removed, Randall shows us how the tap hole is opened with a rock drill, to allow slag to drain down the short launder (drain) and into the bowl below, and then how the tap hole is closed with the mud gun. <LI class=stdlist>f10-slag-side2of3-taphole-lancing-and-mudgun.wmv (3.6mb) Dressed like Darth Vader, Randall manages the flow of slag down the launder into the bowl (below us). To unblock the tap hole Randall drives a lance into the hole blowing oxygen into the hole. Why does the molten slag not flow as well as molten iron? Finally Randall closes the tap hole with the mudgun. <LI class=stdlist>f11-slag-side3of3-kress-taking-bowl-away.wmv (640k) The kress arrives to pick up the slag bowl. How fill is the bowl? Thursday May 27 These first set of movies Step 1 to Step 11 show the process of making sponge Iron from primary concentrate (pure Iron sand) and coal (with lime). <LI class=stdlist>th01-step1-coal-receiving.wmv (920k) A key ingredient for making steel is coal. It arrives right where Donald is standing, by train. Lime is dropped off here to. How many trains a day bring coal? How many bring lime? Where does the coal come from? <LI class=stdlist>th02-step2-coal-receiving-stockpiles.wmv (1.2mb) Updated Grant Thompson Kiln Area Manager explains how lime and coal are mixed in these stockpiles, before being sent to the multi hearth furnace (MHF) be conveyor. <LI class=stdlist>th03-step3-slurry-pipe.wmv (1.2mb) Yesterday Donald saw the slurry pipe leaving the Waikato Head Mine. In the pipe concentrated Iron ore is pumped with water, 15 km here to the mill. Grant explains where the pipe goes to next and how the water is removed. <LI class=stdlist>th04-step4-dewatering-slurry.wmv (860k) How simple! Here you can see the water being removed from the slurry leaving dry Iron concentrate now called Primary Concentrate (PC). What causes the water to be removed? <LI class=stdlist>th05-step5-water-treatment.wmv (650k) The water removed has to be cleaned before being returned to local streams. Here Grant explains how chemicals are added to make the muddy sediments (called slimes) stick together so they can be screened out. This is called flocculation. <LI class=stdlist>th06-step6-pc-reclaiming-pile.wmv (1.7mb) Grant shows us the huge stockpile of Primary Concentrate (concentrated Iron sand) that comes from the dewatering plant. Then Donald goes underneath the stockpile to where the PC is 'reclaimed' and sent by conveyor to the multi hearth furnace (MHF). <LI class=stdlist>th07-step7-conveyor-belts-to-the-mhf.wmv (1mb) Where would the Mill be without conveyor belts? Donald follows two large conveyors, one carrying coal+lime the other Primary Concentrate as they head for the Multi Hearth Furnace. However only one conveyor actually enters the very top of the Multi Hearth Furnace. Donald explains. <LI class=stdlist>th08-step8-multi-hearth-furnace.wmv (1.6mb) You can't see the 12 hearths of the Multi Hearth Furnace (MHF) but you can see the hot pans on the conveyor carrying the Carbon, Calcium oxide and hot dry Iron oxide. The furnace gets very hot so a shower is available as a safety device. Grant checks it out! <LI class=stdlist>th09-step9-rotary-kiln-entry.wmv (670k) Alister a Kiln Operator explains how the product from the pan conveyor (straight from the multi hearth furnace) is added to the top of the rotary kiln. <LI class=stdlist>th10-step10-rotary-kiln.wmv (1.6mb) Donald takes a walk with Alister along the walkway 15m above the ground beside the rotary kiln. What length is the kiln? What is the Iron oxide (dry sand) changed into during its passage through the kiln? What is the concentration of the pure Iron? <LI class=stdlist>th11-step11-sponge-iron-produced.wmv (1.4mb) At the end of the kiln temperatures are high. How high? The Iron at this stage is a fine powder that you can see falling down through the flames. The fine powder is called sponge Iron because every small particle, seen under a microscope has tiny holes in it. <LI class=stdlist>th12-monitoring-stack-gases.wmv (560k) Today two workers are high up on one of the chimneys (stacks). What are they doing? <LI class=stdlist>th13-scrubbing-gases.wmv (1.5mb) Dick Parsons explains that gases from combustion of coal are scrubbed to remove sulphides and other poisonous gases. How is this done? <LI class=stdlist>th14-water-outlet.wmv (1.2mb) Debbie Bryson explains to Donald her responsibilities to monitor any effects of the Mill on the environment. <LI class=stdlist>th15-manukau-harbour-outfall.wmv (1.5mb) Debbie explains what happens to the treated water before it is discharged into the Manukau Harbour. What percentage of water is recycled? Wednesday May 26 w01-intro-to-mine-site.wmv (1.4mb) Donald asks Dick Parsons, Engineer and Mike O'Connell, Mine Manager to introduce themselves at the Waikato North Head Mine. <LI class=stdlist>w02-origin-of-iron-sand.wmv (1.3mb) Donald asks Mike O'Carroll to explain how the iron sand came to be at Waikato North Head. Where did the iron sand originate from? <LI class=stdlist>w03-audio-location.wmv (570k) Donald's guests Mike O'Connell, Mine Manager and Dick Parsons, Engineer answered questions from students at Hornby High School during the today's audioconference Where was Donald today? <LI class=stdlist>w04-bucket-excavator-closeup.wmv (2.3mb) The start of the mining operation is at the coal-face - well sand face really!. How many tonnes of sand can the excavator mine in an hour? Mike O'Connell explains. <LI class=stdlist>w05-bucket-loader-in-operation.wmv (1.7mb) The bucket wheel excavator is am impressive sight when in operation. The excavator sends sand to the first belt wagon then the second belt wagon then to the bench conveyor and on to the processing plant.How many conveyor belts can you see in use here? <LI class=stdlist>w06-belt-wagons.wmv (2.1mb) Mike O'Connell explains how the belt wagons help get sand away from the excavator and up to the conveyors to the processing plant. <LI class=stdlist>w07-excavator-power-supply.wmv (510k) Big machinery needs heaps of power! The excavators and belt wagons are electrically driven. What voltage arrives at the excavator? What voltage do the transformers reduce it to for use in the motors? <LI class=stdlist>w08-mining-benches.wmv (550k) Mike O'Connell explains how the mining operation works through the old dunes. You can see the Tasman Sea in the distance. <LI class=stdlist>w09-iron-sand.wmv (2.6mb) Donald gets close to a cross section of a sand dune created by the mining operation. How did this sand get here? Can you see evidence of this? <LI class=stdlist>w10-rough-magnetic-separators.wmv (730k) Stage 1 of the ore concentrating process uses large magnets to separate the magnetic material from the slurry. <LI class=stdlist>w11-cone-separators.wmv (1.8mb) Stage 2 of the ore concentrating process uses the fact that the iron materials are heavier than the waste materials (tailings). <LI class=stdlist>w12-spiral-separators.wmv (820k) Stage 3 of the ore concentrating process throws low grade material to the outside of the spiral and the heavier ore sticks to the inside. Simple eh! <LI class=stdlist>w13-cleaner-magnets.wmv (650k) Stage 3 of the ore concentrating process uses magnetism again to finally concentrate the ore before it ends up on the stockpile. <LI class=stdlist>w14-stockpile.wmv (870k) The concentrated ore (titano-magnetite) with the water removed, falls onto the stockpile. Beneath this huge pile is yet another conveyor that takes the sand to a mixing station where it is combined with water before the 18km journey through a pipe to the steel mill. <LI class=stdlist>w15-tailings.wmv (1.6mb) Mike O'Connell explains what happens to the sand that is left after the iron ore is removed. Where does it go? <LI class=stdlist>w16-what-happens-to-the-tailings.wmv (370k) Having been through the processing plant, Donald had to ask - what did happen to the tailings? <LI class=stdlist>w17-water-use.wmv (560k) From the stockpile is a large lake. Mike explains that the lake is an important part of the mine site. <LI class=stdlist>w18-compass-and-magnet.wmv (1.4mb) Earlier in the day Donald held a handful of iron sand near a compass. The unprocessed sand shifted the compass needle about 2 degrees. What effect does a handful of concentrated iron ore from the stockpile have on the compass? How does it react to Donald's magnet? <LI class=stdlist>w19-slurry-pipeline.wmv (1.1mb) On the road between the North Waikato Head mine site and the Glenbrook steel mill are signs like this one. Donald asks Dick Parsons to explain the significance of the slurry pipeline - a world first.
w20-eating-away-the-bench.wmv (1.8mb) Mike O'Connell explains how the benches are created during the process of mining the iron sands. The huge machinery makes a new landscape, later to be backfilled with the mine tailings. Why does the bucket wheel excavator sometimes work more slowly? Why is the iron sand sometimes a reddish colour, other times a dark grey? التعديل الأخير تم بواسطة islamiccastel ; 08-04-2007 الساعة 12:29 AM.
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07-04-2007, 11:45 PM
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نسألكم الدعاء
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07-04-2007, 11:51 PM
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الباقة الثالثة
الباقة الثالثة بعنوان Manufacturing Videos Introduction Cool Honda advertisement About the Honda advertisement Dislocation motion Plastic deformation Tensile test / Screw dislocation Component deformation Types of heat transfer Heat transfer in a rod Disk brake Fluid flow past a cylinder Pencil manufacture Ball bearing crystal model Casting Metal pouring Induction melting of metal Mold filling movie Investment casting Lost foam filling movie Casting filling animation Horizontal centrifugal casting Horizontal centrifugal casting Vertical centrifugal casting Filling of spiral test mold Hot chamber die casting Cold chamber die casting Cold chamber die casting Cold chamber die casting Squeeze casting Directional solidification Dendrite growth Blast furnace animation Continuous casting - (1) melting and solidification operations Continuous casting - (2) rolling operations Deformation Processing Open die forging Closed die forging Hammer forging Forging machine animation Wrench forging animation Upsetting (heading) Heat treating Rolling Rolling Rolling Drawing Slinky manufacture Sheet Metal Forming V-die bending simulation V-die bending simulation Air bending simulation Wiping die simulation Wiping die springback simulation Wiping die springback movie Dies Types of dies Types of presses Plasma punch press U-joint animation Tube bending Tube bending Stamping FEM Hydroforming Hydroforming of sphere FEM Hydroforming of joint FEM Hydroforming of shaft FEM Machining Orthogonal cutting Card model of shear plane Chatter Shear strain animation 1 Shear strain animation 2 Hitch ball turning Microturning Chip formation Machining temperature animation Tool materials Tool geometry Milling Micromilling Hole drilling Tapping Grinding wheels Grinding Introduction to machining : Introduces turning, milling and drilling operations Wedge shape tool: Shows how all cutting tools have the basic wedge shape Cutting action, basic tool geometry and shear plane: Shows the necessity of clearance and rake angles, and the presence of shear plane in machining Rake angle and effect on power: Demonstrates how power required for machining varies with the rake angle and why very high rakes are not desirable Cutting tool geometry: Shows all the required angles in a cutting tool Drilling tool geometry: Shows important angles in a drill bit Non-traditional processing Water jet cutting Water jet cutting movies Electrical discharge machining Wire electrical discharge machining Plasma punch Photo etching
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08-04-2007, 12:31 AM
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Joining Resistance welding Ultrasonic welding of metal Ultrasonic welding of plastic Shielded gas arc welding Weld pool animation Arc welding fume formation Plasma welding Pulsed gas metal arc welding TIG (Tungsten Inert Gas) welding Laser welding Laser welding of spark plug Nb:YAG (Niobium-Yttrium-Aluminum-Garnet) laser welding Friction welding Friction welding Friction stir welding Friction stir welding Brazing Polymers Injection molding Injection molding Injection molding animation Injection molding clamp animation Lego manufacture Collapsible core injection mold Expandable cavity injection mold Extrusion PVC window frame extrusion Co-extrusion and Blown film extrusion Extrusion blow molding Extrusion blow molding Blow molding animation Blow molding video Transfer molding Rotational molding Static mixer CD CD-R burner CD-RW burner Weldline genesis Polaroid sunglasses How Polaroid sunglasses work Plastic slinky manufacture Draft bottle widget Draft can widget Composites Composites manufacturing Vacuum bagging Pultrusion animation Filament winding animation McLaren F1 car manufacture Powder Powder pressing Powder pressing animation Rapid Prototyping Stereolithography Stereolithography Stereolithography animation Selective laser sintering Fused deposition modeling Layered object modeling Layered object modeling Speed part Rapid injection mold tooling Soft tooling Integrated Chip Manufacture Silicon wafer manufacture Microelectronic chip manufacture Semiconductor theory Semiconductor manufacturing What is a clean room? History of the Integrated Circuit Integrated circuit manufacture game US Government National Nanotechnology Initiative Digital Light Projector
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08-04-2007, 12:32 AM
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لا تنسونا من صالح دعائكم
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09-04-2007, 04:35 PM
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الباقة الرابعة WELDING Super Alloy 1 Videos Pot Metal Door Handle Repair (1:46) Pot Metal Headlight Trim Repair (2:53) Eliminate Warpage in Steel Side Panels (1:09) Joining Brass to Aluminum (2:35) Joining Copper to Aluminum (1:40) Repairing Brass Radiator Tanks (:45) Joining Copper Tubing to Aluminum Tubing (1:17) How to Fill Pot Metal Pits (:55) Air Charge Cooler Repair (:45) How to Join 2 Pieces of Broken Pot Metal (1:00) Repairing Multiple Aluminum Radiator Holes (3:13) How to Fill Gaps in Pot Metal (:50) An Aluminum Radiator with a 1/8" Hole in the Tube (:29) A Pot Metal '67 GTO Console Piece with a Peg Missing (:40) A '67 GTO Console Piece with a 1/8" Tear in the Pot Metal (:29) Super Alloy 5 Videos ATV Radiator Repair (2:00) Thick to Thin Aluminum Repair (1:36) How to Fill Holes in Aluminum (1:10) Cast Aluminum Intake Manifold (2:06) Aluminum A/C Return Loop Repair (:50) Aluminum Transmission Case Repair (3:00) Bumper Reinforcement Repair (2:40) Vertical Radiator Repair (:34) Brazing vs. Soldering (:45) Joining Aluminum Plates (1:50) Filling Aluminum Gaps (:55) Super Alloy 5 Strength (:40) Joining Aluminum A/C Fittings (1:20) Multiple A/C Line Holes (2:15) Aluminum Boat Repair (:55 )Aluminum A/C Fittings (1:29) Aluminum Boat Repair #2 (1:59) Repairing Aluminum Puncture Holes (:53) SSF-6 Silver Solder Videos Repairing Stainless to Stainless (1:06) Repairing Steel to Steel (2:03) Cast Iron Exhaust Manifold Repair (1:40) Joining 2 Pieces of Brass (1:25) Joining Stainless to Brass (1:00) Hydraulic Hose Repair (1:50) Bobcat Oil Pan Repair (1:00) Copper A/C Condenser Repair (:38) Cool Blue Heat Paste Videos How to Use Cool Blue Heat Paste (1:00) Protect Heat Sensitive Surfaces (1:15) Fishing Pole Repair (1:45) Eliminate Warpage in Auto Body Applications (1:55) Cast Iron Cummins Exhaust Manifold Repair with 72 & 77 (3:45) Ornamental Fireplace Stand Repair (1:46) Cast Iron Blower Repair (2:23) التعديل الأخير تم بواسطة islamiccastel ; 09-04-2007 الساعة 04:42 PM.
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09-04-2007, 04:43 PM
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لا تنسونــــــــــــــــــــا من صالح دعـــــــــــــــــــــــــــائكم
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14-04-2007, 09:49 PM
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مشكوووووووووووووووووووووووووووووووور بس التحميل بطيئ جدا جدا
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26-04-2007, 11:33 PM
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بارك الله فيك
شكرررررررررررررررررررررررررررا
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09-05-2007, 08:30 PM
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