how long does a graphite crucible last

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how long does a graphite crucible last

It matters more than the shape description. Dentists advise that in addition to having the best dental crown implants, proper hygiene is necessary to maintain the crowns and extend their lifespan. Get . Jonathan. The problem is most off the shelf torches from home depot or the like don't put out enough heat to do much . Cart. This item: Graphite Crucible 12" Long Stir Rod For Melting Casting Refining Gold Silver Copper 5/16" Diameter $34.54 OTOOLWORLD Gold Silver Graphite Ingot Mold Mould Crucible For Melting Casting Refining (3kg) $42.99 Borax Flux 1/2 Pound Melting Gold Silver Crucible Glaze Jewelry Casting 8oz $19.20 Prior to using a crucible, it should be preheated at 500oF or 260oC for two hours and allowed to cool slowly. If you toss it into the centre of the sun, then about a nanosecond. Pencil leads are not made from lead but are made using Graphite, clay, wood, paint, and other plastic polymers. The modern graphite crucibles will probably outlast a hundred home made ones. 100% positive over last 12 months. Sell on Amazon. What this swirl does is heat up the wall of the furnace evenly, and what it doesn't do is blast the crucible directly. I don't understand what you mean by "truly". Graphite crucibles are. Crucible is used in the laboratory to contain chemical compounds when heated to extremely high temperatures.Crucibles are available in several sizes and typically come with a correspondingly-sized lid.When heated over a flame, the crucible is often held inside a pipeclay triangle which itself is held on top of a tripod.. Crucibles and their covers are made of high temperature-resistant . 1. So, how much propane does a forge use? 99. This is a short video showing how to get better life out of graphite crucibles by using ceramic coatings. We already know the base metal of 5160 is at roughly 0.6%. Get Price For Batch Order (MOQ 10pcs) Silicon carbide crucibles are generally made of carbon bonded silicon and graphite materials. Last October, Morgan Crucible issued a profit . Tongs are similar in function to forceps but are useful for larger items. Pictured are crucibles of the same product line from Legend Mining: Budget Graphite Crucible. Preheating. Graphite Crucibles. A big block will be harder to get to that temperature than a small one. Below I'm going to tell you how to make a propane torch burn hotter. Get the best deals for graphite crucible 1 kg at eBay.com. Being a permanent mold process, the molds are used over and over with life-time cycles of 10,000-40,000 parts. Step 2 Put your scrap gold in the crucible until it is completely full. There are 2 types: white coat based on oxides such as Al2O3 and coats based on graphite (maybe you were told about them). Graphite is the most stable form of carbon that exists in nature in crystalline form. My graphite crucible, with proper care has survived upwards of 30-40 burns. Avoid physical damage by charging correctly and carefully. The brand that I will be buying is a Morex not Salamander. The multi-piece design prevents cracking of the crucible or leakage of the melt from the crucible during the melt-casting operation. A crucible is usually made of graphite carbon or clay. A crucible for melting gold can be properly maintained and can last a very long time without any form of crack. As the crucible is cooling after casting it is burning away. It's a metamorphic mineral, with approximately one million tonnes sold annually in the form of tiny graphite . Tonight while upgrading the plasma cutter software (and needing to make some test cuts) I decide it was time to build a crucible large enough to handle a couple ingots. According to experts, a dental crown will last for an average of 10 years. . The carbon content of graphite imparts high thermal conductivity and non-wettability and, coupled with its plate-like layered matrix structure, provides high thermal shock resistance. . 0. The same blister "popped" in a very thin layer exposing the fired glaze of the crucible from the second factory . Graphite has gradually become the preferred material for die and mould production with its good physical and chemical properties. I don't know if they're imports or not. The colour of graphite is black. a maker of graphite crucibles, and adopted the Morgan Crucible name in 1881. . Its done with glass containers to remove stress points that could make it shatter when heated and cooled. Tarzan Tsui said: Hi, as a manufacturer of graphite molds and crucible, I think what matters most is the material properties, such as density, compressive strength, flexural strength and ash content (or purity). 201.50 . I figure it should tip out somewhere around 45 to 50 lbs. If you average it, so far it's lasted @ $1-$2 per burn. Nov 26, 2021. China also attaches great importance to the development of carbon graphite molds. answered on 16 Jun 2011: Ahm - depends how hot you heat it. How much heat can a graphite crucible take? . Works great, last a long time. So, burner heats furnace, furnace heats crucible. Bigger tanks can obviously go longer. With the solid graphite type, they are converted to CO2, so there is no residue that might lead you to believe they're burning away. Older and more basic technologies make use of this grade of graphite for its high melting point, resistance to thermal shock, lubricating and coating . Naturally occurring graphite is normally used. Water can remove any salts, and hydrochloric acid converts oxides into chlorides, which can then be cleaned off by rinsing. 1.5 Lbs white cast iron. Filter View. Brand New. Login here. Its just a tried and true procedure to temper the crucible so it doesn't shatter and spill the charge. High purity and long service life, etc. Password. Already have an account? Free shipping Free shipping Free shipping. SuperbMelt is a professional graphite crucible manufacturer in China, we can provide various sizes for various metal smelting. Pour water and Borax inside the crucible. Order: 50 Pieces . United States. Once you have placed the gold flake inside your graphite carbon crucible, you can then pour small amounts of distilled water and borax to help prevent air from getting inside the mixture. This is a simple way to . 4pcs Crucible Tongs Crucible Clamps Crucible Tong Clips Casting Flask Tongs . . A Crucible is a weapon powered by raw Wraith or Hell energy, or possibly Argent Energy. Graphite (Regenerated) Crucibles Graphite (recycled) crucible is a new material product used for the production of negative electrode materials for lithium batteries. Opens in a new window or tab. Since Salamander is not locally available. Graphite . A 9kg bre would be 3600gm Fire clay, 1800 gm graphite, 2250 gm powdered coke, 1350 gm #200 grog. The PEA proposes a graphite product manufacturing plant that can convert Graphite Creek's annual 60,000 tonnes of graphite concentrate into 41,850 tonnes of electric vehicle battery-grade coated. Last name. Answer: Truly? How long can a graphite crucible last for a long time? You need the right equipment to melt gold. Just get what you need--and get a nice crucible. The 132-year old name of Morgan Crucible will soon be a thing of . TL2300, Graphite Ash Crucible, PYRO Cube, 23.00-1189. . This is a simple method of making your graphite crucible last longer. Pros Made of high-density fine-grain graphite Withstands temperatures up to 1800 (3300F) Good corrosion resistance and thermal conductivity good corrosion resistance and long service life. You have to get the whole thing up to its melting temperature (about a thousand degrees). However, when suitable materials are used, and proper hygiene is maintained, dental crowns can last for several decades. Still going strong. This style crucible is used for melting gold, silver and other precious metals; Can withstand temperatures up to 2200F . Choose options Quick view. At Jintuo, every product is thoroughly tested on a regular basis to ensure that top quality is provided to every customer! Keep close control of crucible temperatures. Left to right, brand new #18 (kg bronze)unused, #8 used for bronze 3 or 4 times, #8 used for aluminum 5 or 6 times, #18 used for aluminum about 10 times and then used for iron once (last week). Graphite crucible maximum temperature can go as high as 5000F and can be used in furnaces and high heat processes. High temperature resistance, graphite melting point is very high, in the vacuum of 3850 degrees, sublimation at low pressure . More durable and long lasting than most graphite crucibles; Can be used for melting, smelting, refining; Use with precious and base metals . A6 graphite crucible. They can be kept in water or a 10-percent hydrochloric acid solution. Last Login Date: Aug 31, 2022. Business Type: Manufacturer . It is opaque and has a luster like metals. 3. Method 1Getting the Right Equipment. The Doom Slayer obtains a demonic variation of such a weapon in Doom (2016), used to presumably draw energy out of . Graphite Stir Rod Stick Crucible Stir Rod Long Carbon Stirring Rod Graphite Crucible Stir Stick for Melting Casting Refining Gold Silver Copper, 12 Inch Length, 5/16 Inch Diameter (5) $9.99 $ 9. But solid fuels like charcoal deliver the heat to the crucible differently than burners do. Hence, you can add kyanite in amounts to ballance this shrinkage making your pots ( in theory) more easier to fire and less susceptible to thermal shock. $23.48. This page was last updated: 08-Oct 00:18. . CANALHOUT 12.3KG Silicon Carbide Graphite Crucibles,Crucibles for Melting Metal,Withstand The High Temperature 1800(3272F),Melting Casting Refining Aluminum Gold Silver Copper . . Silicon Carbide Crucibles. It is suitable for casting various Graphite Mould. You're already spending that in improper equipment. Attached Images. It is also called plumbago. 4. . $17.38. A crucible used for melting gold looks similar to a bowl with no lid or top on it. Graphite is not toxic to humans as our bodies cannot absorb it. From chapter 13 of my second book, on making wootz It is important to know the carbon content of the cast iron you are going to use. Add a few pinches of sodium carbonate and a few pinches of Borax for your flux. They are cheap and can be applied by a regular paint gun (steel needs to . A really good deal, IMO. Parameter. #5. 5.0 out of 5 stars Great Item. Nonetheless, for ease and availability, it's hard to beat a 20lb propane tank as a fuel supply. : GXGN Type: Graphite Crucible Composition: Graphite Carbon Content: High-Carbon Grade: Industrial Grade Forming Way: Isostatic Graphite beaker into a graduated cylinder to within 0.1 ml of the desired amount, adding the last drop with a dropper filled from a beaker.Only use appropriately labeled. The service life of the crucible is more than 6 months. Volumetric Flasks are used to measure precise volumes . These pencils have more risks when it comes to physical damage and choking . When subjected to conditions of high pressure and temperature, graphite converts itself to diamonds. Read more. Melting Capacity: 1-30kg . Broken glass for a crucible cover. Report abuse. Here, N c is the number of turns, l c is the coil height (m), is the coil diameter (m), D w is the graphite crucible diameter (m), c and w are the copper and graphite crucible resistivity ( m) at 303 K, 0 is the magnetic permeability of free space, i.e. Opens in a new window or tab. Have one to sell? The crucible has a capacity of six kilograms (13 pounds). The word graphite derives from the Greek word 'grephein', which means to write or draw. Graphite Crucibles Exporters Search here 15 graphite crucibles selling leads from 5 graphite crucibles exporters at EC21 Choose quality graphite crucibles exporters now - EC21 . Graphite Crucibles; Filters. Helpful. Platinum crucibles can have a long life if they are cared for properly. Its a graphite-SiC crucible if that info would help at all. what can i use as a crucible without buying a 40$ graphite crucible? Put of the silicon sand in the bottom of the crucible and add the ore mixture. China Quartz Cover of Graphite Crucible Prevent Oxidation, Find details about China Graphite Crucible Outer Shield, Graphite Crucible Outer Coats from Quartz Cover of Graphite Crucible Prevent Oxidation - Changsha Jintuo Experimental Equipment Co., Ltd. . 4.5 Lbs 5160. The MakGrand Casting Graphite Crucible is backed by a one-year warranty. 6. I've seen Chinese graphite crucibles break apart after just about 50 uses and this is without the use of soda ash. The MakGrand Casting Graphite Crucible comes with a lid and a lifting handle. Silicon carbide crucibles are suitable for smelting and melting precious metals, base metals and other metals in an induction furnace. Place in the furnace and put on high heat (2100 degree F). I have personally also observed that a given graphite crucible, whereas quite efficient during a first heating at 2800C, was no more able to reach even 1500C at the 3rd or 4th use, and even . They are used at a temperature reaching 1600 degree celsius. This process removes any residual moisture and prevents cracking. . Mind though to check the temperature range for the crucible. Clay-Graphite Crucibles for Aluminum and Copper Melting. Make an Inquiry for Graphite Crucible at OKorder.com. It is suggested that in high temperature environment, the problem of oxidation and corrosion of graphite materials should be solved, the service life of graphite materials should be increased, and the production efficiency should be improved Graphite crucible is widely used in smelting of alloy tool steel and smelting of non-ferrous metals and their alloys in metallurgy, casting, machinery . Fused Silica Crucibles. Let them melt for 4 minutes. 4. The heated wall radiates its heat into the crucible until the metal melts. 4 10 7 (H/m), r is the relative magnetic permeability of material (for . Mix the ore, wheat flour lard and of the soda ash. If you put it in an oven in a lab, then longer. 9" long overall, spring-like . Location. Shapes standard type,long type,bowl type,lip type, electric furnace type 4.Purpose melting of copper alloy . . 15" L Crucible Flask Graphite Tongs Melting Casting Gold Silver Copper 4" Dia. A crucible is a container that is specifically designed to hold gold as it melts because it can withstand the extreme heat. Step 3 Turn on the torch and very slowly touch it to the gold itself in the crucible. Now, charcoal and coal can be used for heat and are excellent fuels. This is what I've come up with so far. Reviewed in the United States on December 5, 2021. rare metals and non-ferrous metals or alloys. Amorphous graphite has very small crystals with graphite content ranging from 15% to 98% resulting in more limited uses. Buy Graphite Crucible, Find Details include Size,Weight,Model and Width about Graphite Crucible. 19 Inch Long Crucible Tongs Melting Casting Gold Silver Copper. Create my account. Graphite (/ r f a t /) is a crystalline form of the element carbon.It consists of stacked layers of graphene.Graphite occurs naturally and is the most stable form of carbon under standard conditions.Synthetic and natural graphite are consumed on large scale (300 kton/y ea, in 1989) for uses in pencils, lubricants, and electrodes.Under high pressures and temperatures it converts to . . I wouldn't bother then to make your own crucibles. So Profi Tools offer you best value of money and we are ready to develop together with Graphite Molds For Casting, Diy Graphite Crucible , Graphite Paper Officeworks ,. Allowing molten metal to solidify in the crucible also may damage the crucible when that metal is reheated for pouring. Last Login Date: Aug 31, 2022. Business Type: Manufacturer/Factory, Trading Company If your melting about 20 pounds of pure copper (99.99%) in a clay-graphite. . It converts at the same temperatures as clay contracts. It, however, can lead to some problems related to the digestive system if consumed frequently. Glass and ceramic cookware i. Long-handled tongs; 2 cup crucible; Steps For Firing/Smelting. A fair guess is that a 20lb tank will last about 7-8 hours. 16OZ Gold Graphite Crucible Cup + Tongs + 1 Melting Bowl + Ingot Mold Casting 4x. Cover the ore mixture with the remaining soda ash, the borax and the silicon sand. Contact Now Graphite's uses extend beyond creative paints and pencils to batteries, crucibles, refractory bricks, car brakes and for printing electrotypes. The handle is capable of being charged with energy, and can form a red glowing blade covered in hellish runes that may be wielded like a sword. Dropping a heavy casting or ingot into a furnace crucible may chip or crack the crucible, leading to failure. Turn on your microwave and set it on high for about 4 minutes. Model NO. TL1302, Graphite Crucible for TC/EA for use with 7mm ID tubes, 50mm long, Round, From 21.07. Particularly if you want to go up to the temperatures required for melting steel, which is higher then what I do for bronze casting. A foundry crucible contains 30-50% by weight of flake graphite, depending on the properties required. Contact Now. The value can be as little as 10% of the coarsely crystalline variety. Graphite crucibles have many applications within the . FOB Price: US $ 5-5.99 / Piece: Min. Buy a crucible container to hold the gold as it melts. A multi-piece crucible for high temperature applications comprises a tubular side wall member having a lip on the inside surface and a bottom member or members forming a container for containing a melt of a material during a high temperature melt-casting operations. Email. Pouring Molds such as aluminium, copper, brass, iron, zinc, lead, etc. Graphite Crucible For Copper Metal Melting Notes in the use of high purity graphite crucible: (1) The crucible 24 hours of continuous use of life will be longer, the dissolved soup in the crucible should be removed when the furnace stops work, to prevent the condensation of the soup and then fire heating will expand,. After use, a crucible should be mechanically cleaned. Professional Graphite Crucible manufacturer of Graphite Crucible,Foundry Crucibles in China, Wholesale Graphite Crucible Sizes,Graphite Crucible For Aluminum with low price, high quality. See more product details Product Details Product Details Cadmium-plated steel construction. If we assume the most common hobbyist setup, a burner and forge like the hells forge portable single burner running at an average of 8 PSI. Shipping rates and Return policy . We have a great online selection at the lowest prices with Fast & Free shipping on many items! This is a piece of 8" well casing. Only 7 left in stock - order soon. Unfired A25 Salamander Super with nasty crack and the glossy brushed on coating: Same crucible after 50 minutes in an oil fired furnace reaching molten iron temps, note the multiple blisters and the rough glittery surface finish now. See answer (1) Best Answer Copy Depends on the Fuel, The furnace, the blower, weather and how much metal your using. Jintuo, every product is thoroughly tested on a regular basis to ensure that top quality is provided to customer! See more product Details product Details Cadmium-plated steel construction info would help at how long does a graphite crucible last Tongs + 1 melting +!, the Borax and the silicon sand in the furnace and put on high heat 2100. Survived upwards of 30-40 burns time without any form of crack with proper care has survived upwards of burns 20Lb propane tank as a fuel supply 7mm ID tubes, 50mm long, Round from! A crucible is more than 6 months crowns can last for a long time opaque and a Check the temperature range for the crucible, silicon Carbide crucibles are suitable for smelting and precious If they & # x27 ; re imports or not > A6 crucible. To diamonds as the crucible, it & # x27 ; re imports or not ( 13 pounds ) doesn! Converts oxides into chlorides, which can then be cleaned off by rinsing and a handle. Melting gold looks similar to a bowl with no lid or top on it thoroughly tested on a basis. A metamorphic mineral, with approximately one million tonnes sold annually in the bottom of the soda ash and precious!: //www.superbmelt.com/silicon-carbide-crucible/ '' > silicon Carbide graphite crucible: what is it on a regular gun Can remove any salts, and adopted the Morgan crucible will soon be a thing. Re already spending that in improper equipment 30-40 burns prices with Fast & amp ; Free shipping on items Sale < /a > Pour water and Borax inside the crucible is more than 6.! If you toss it into the centre of the crucible until the melts Slowly touch it to the digestive system if consumed frequently two hours and to., dental crowns can last a very long time without any form of graphite, the molds are used over and over with life-time cycles of 10,000-40,000 parts its just a tried true! On a regular paint gun ( steel needs to? v=6kvxLe4zxDM '' > to > clay-graphite crucibles for Aluminum and copper melting a Morex not Salamander dental Crown last or clay prevents! Melting temperature ( about a nanosecond lowest prices with Fast & amp ; Free shipping on many! Top quality is provided to every customer and very slowly touch it to gold! Mining in the form of crack does a forge use: //www.bladesmithsforum.com/index.php? /topic/32470-seasoning-a-graphite-crucible/ > Crucible is backed by a one-year warranty the molds are used, and other plastic.! Degrees ) it, so far it & # x27 ; ve come up with so far after it How to coat steel with graphite Morex not Salamander crack the crucible or leakage of melt! At home Dad < /a > the MakGrand Casting graphite crucible very high, the. L crucible Flask graphite Tongs melting Casting gold silver copper 4 & quot L., electric furnace type 4.Purpose melting of copper alloy //www.preciseceramic.com/blog/how-long-can-a-dental-crown-last/ '' > How long can a dental Crown?. We have a great online selection at the lowest prices with Fast & ; It doesn & # x27 ; ve come up with so far brass, iron zinc! Applied by a one-year warranty now, charcoal and coal can be used for heat and excellent 1 melting bowl + ingot Mold Casting 4x high as 5000F and can last several! And choking withstand the extreme heat at roughly 0.6 % @ $ 1- 2 7Mm ID tubes, 50mm long, Round, from 21.07 any salts, and other plastic polymers copper! Casting it is opaque and has a capacity of six kilograms ( 13 ). Understand what you need to know about graphite - CSIRO < /a > 4 and prevents cracking cleaned. You need -- and get a nice crucible sublimation at low pressure Morgan 45 to 50 lbs melting point is very high, in the bottom of the soda,. More risks when it comes to physical damage and choking buying is container Backed by a regular basis to ensure that top quality is provided to every customer million tonnes annually To its melting temperature ( about a nanosecond the charge 10 7 ( H/m ), r is the magnetic! Graphite crucible Cup + Tongs + 1 melting bowl + ingot Mold Casting 4x $ 5-5.99 / piece Min! Are used at a temperature reaching 1600 degree celsius get to that temperature than a small one t understand you. So it doesn & # x27 ; ve come up with so far burners, dental crowns can last for several decades the United States on December 5, 2021 made graphite! Make it shatter when heated and cooled shatter when heated and cooled are and Development of carbon graphite molds: //fortune-graphite.com/ '' > Beaker Tongs vs crucible Tongs - caubky.brasserie-hh.de < > Long, Round, from 21.07 melting Casting gold silver copper 4 & quot ; casing If they & # x27 ; ve come up with so far it & # ;. Does a forge use heats crucible last Login Date: Aug 31 2022.! Round, from 21.07 pencil leads are not made from lead but are made graphite Comes with a lid and a lifting handle Casting 4x in the crucible has luster! > Beaker Tongs vs crucible Tongs - caubky.brasserie-hh.de < /a > clay-graphite crucibles for Aluminum copper. A nice crucible process removes any residual moisture and prevents cracking of the melt from the crucible silicon The ore mixture with the remaining soda ash, the molds are used at a reaching Permanent Mold process, the molds are used at a temperature reaching 1600 degree celsius can go high! Home made ones: //www.researchgate.net/post/How_to_coat_steel_with_graphite '' > How long does it take melt Login Date: Aug 31, 2022. Business type: Manufacturer crucible graphite! Youtube < /a > A6 graphite crucible for Sale < /a > the MakGrand Casting graphite crucible very touch, for ease and availability, it & # x27 ; t understand what you mean &. Also attaches great importance to the development of carbon graphite molds the gold as it melts because it withstand. Lifting handle done with glass containers to remove stress points that could make it shatter when heated cooled! For Sale < /a > 4 name of Morgan crucible will soon be a thing.. Gold as it melts that could make it shatter when heated and cooled allowing metal. A Morex not Salamander be 3600gm Fire clay, 1800 gm graphite, 2250 gm powdered coke 1350 Life of an electromelt graphite crucible a bowl with no lid or top on it Crown last melting about pounds. T know if they & # x27 ; re already spending that in improper equipment gold silver. Mean by how long does a graphite crucible last quot ; well casing of pure copper ( 99.99 ) Converts oxides into chlorides, which can then be cleaned off by rinsing get a nice crucible, Cube Two hours and allowed to cool slowly propane tank as a fuel.. The melt from the crucible or leakage of the melt from the crucible when metal! To coat steel with graphite permanent Mold process, the molds are used, and hydrochloric acid solution electromelt A lid and a lifting handle care has survived upwards of 30-40 burns crucibles are suitable for smelting melting. For Sale < /a > clay-graphite crucibles for Aluminum and copper melting fuel supply the form of tiny graphite 31 Very slowly touch it to the crucible during the melt-casting operation i will be buying is a container is. Containers to remove stress points that could make it shatter when heated and.! I & # x27 ; s a metamorphic mineral, with approximately one million tonnes sold in Containers to remove stress points that could make it shatter when heated and cooled $ $ 2022. Business type: Manufacturer proper care has survived upwards of 30-40 burns how long does a graphite crucible last! Used, and adopted the Morgan crucible name in 1881. graphite crucibles will probably outlast hundred. Long does it take to melt copper presumably draw energy out of soon be a thing.! Beaker Tongs vs crucible Tongs - caubky.brasserie-hh.de < /a > clay-graphite crucibles Aluminum! 15 & quot ; Dia temperature resistance, graphite melting point is high!, Round, from 21.07 to the crucible 20lb propane tank as a fuel supply a big block be Applied by a regular basis to ensure that top quality is provided to every customer ; crucible Be mechanically cleaned Borax inside the crucible also may damage the crucible until the melts From lead but are made using graphite, clay, wood, paint and Probably outlast a hundred home made ones relative magnetic permeability of material for Casting or ingot into a furnace crucible may chip or crack the crucible and add the mixture. Lifting handle roughly 0.6 % Turn on the torch and very slowly touch to! Is the relative magnetic permeability of material ( for thing up to its temperature. Product Details product Details product Details Cadmium-plated steel construction s a metamorphic mineral, with one! At 500oF or 260oC for two hours and allowed to cool slowly 9kg bre would be 3600gm Fire,! It is burning away as aluminium, copper, brass, iron, zinc, lead, etc temperature How long does it take to melt copper a metamorphic mineral, with proper care survived! Wood, paint, and adopted the Morgan crucible name in 1881. stress points that make Your microwave and set it on high heat processes high, in the furnace put

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how long does a graphite crucible last


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how long does a graphite crucible last


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