Sic Graphite Crucible for Melting Metals

Sic Graphite Crucible for Melting Metals System 1

Sic Graphite Crucible for Melting Metals

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 1000 pc/month

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Quick Details

Application:	melting metals	Height:	depends on your requirement	Top Diameter:	10-1200mm
Bottom Diameter:	10-1200mm	Place of Origin:	China (Mainland)	Brand Name:
product name:	SiC graphite crucible china graphite crucible	top diameter:	10-1200mm	bottom diameter:	10-1200mm
height:	depends on your requirement	application:	melting gold,silver and other metals	Specific resistance:	≤14μΩ.m
Bending strength:	≥25MPa	Compressive strength:	≥50MPa	Bulk densit:	≥1.68g/cm3
Ash content:	≤0.15%

Packaging & Delivery

Packaging Details:	woden case for SiC graphite crucible china graphite crucible
Delivery Detail:	within 20 days

Introduction

1. Graphite crucible can be used for non-ferrous metal smelting and casting, dissolving gold

or silver ornaments, analysis of special type steel, sintering hard metal.

2. graphite crucible for smelting gold is specialized in melting gold in headgear and jewelryindustry. That requests graphite material has high density and purity, ablation-resistance, and it can be used many times. We can machine various crucibles accordingto customer's requirement.

3. Machined from high pure graphite and widely used in the gold,silver,platinum and other noble metal's melting.If it's used in oxygen atmosphere,it wil start to be oxygenized when the temperature is higher than 700-800°c. If it's used in the protective atmosphere, it can stand more than 2000°c.

4. widely used in such fields as industrial furnaces, mono-crystalline silicon machinery, mono-crystalline silicon machinery, electron, semi-conductor, metallurgy, oil, chemistry, textile, electrical machinery, electrical equipment, electrical furnace, traffic, communication industry, medicine, etc.

Advantages

1.good thermal conductivity

2.High-temperature resistance

3. Small thermal expansion coefficient.

4.Strong corrosion resistance to acid and alkali liquid

5.Good chemical stability

Technology parameter

Item	Unit	High pure graphite
		baked twice	baked three time	baked four times
		impregnated once	impregnated twice	impregnated three times
Grain size	mm	≤325mesh	≤325mesh	≤325mesh
Bulk density	g/cm3	≥1.68	≥1.78	≥1.85
Specific resistance	μΩ.m	≤14	≤14	≤13
Bending strength	MPa	≥25	≥40	≥45
Compressive strength	MPa	≥50	≥60	≥65
Ash content	%	≤0.15	≤0.1	≤0.05
We accept small orders,please inquiry us freely.

Item	Unit	Fine-grain Specialty Graphite model 1		Fine-grain Specialty Graphite model model2
Item	Unit	Guarantee value	Typical value	Guarantee value	Typical value
Max grain size	mm	0.8	0.8	0.8	0.8
Bulk density	g/cm3	≥1.70	1.73	≥1.73	1.76
Specific resistance	μΩ.m	≤8.5	7.5	≤8.0	7
Bending strength	MPa	≥10.0	11	≥12.0	12.5
Compressive strength	MPa	≥24.0	27	≥31.0	34
Thermal Condcutivity	W/(m.k)	≥120	150	≥130	160
C.T.E.(100-600) °C	10-6/°C	≤2.5	2.2	≤2.5	2.1
Ash content	%	≤0.3	0.09	≤0.3	0.09
We are always avliable to service you!

Parts sizes of graphite crucible table

Product name	Dimensions(mm)				Weight(g)
Product name	Φ1	Φ2	Φ3	H	Weight(g)
1 kg graphite crucible	58	47	35	88	160
2kg graphite crucible	65	58	44	110	240
2.5kg graphite crucible	65	58	44	126	300
3kg graphite crucible	85	75	60	105	390
4kg graphite crucible	85	75	60	130	500
4kg graphite crucible	85	75	60	136	500
5kg graphite crucible	100	89	69	130	700
5.5kg graphite crucible	105	90	70	156	800
6kg graphite crucible	110	97	79	174	970
We have all kinds of sizes graphite crucibles in stock,please feel free to contact us.

packaging & shipping

Packaging

1. For each type, we can send you the detailed high-resolution pictures since we have the sample in our hand.

2. For packaging, we have the professional packaging starff, pls. don't worry about the shipping.

Our service

1.Delivery time is 5~7 days for sample and 15 working days for bulk order;
2. Strong production capacity and strict quality control system;
3. Your inquiry and problems related to our products or prices will be replied in 24 hours;
4. Well-trained and experienced staffs to answer all your inquires;
5. After-sale tracking service for all of our clients;
6. OEM is available; small quantities, mixed bulk orders are also welcome;
7. Payment: L/C, D/A, D/P, T/T, Paypal , Western Union, MoneyGram;
8. Delivery way: UPS, DHL, TNT, FEDEX, EMS, CHINA POST.

After-Sales Service

1.1year warranty for most of our products;

2.We will arrange delivery of the goods on time:

3.Within the warranty period, we will bear all the qulity problem of our produts;

4.Beyond the warranty period, we will despatch the replacement parts to help fix the products;

5.Without any problem, we will gain the feedbacks of our products to help improve better products.

FAQ

Q:How to get in touch with us?
A:You can clik "Contact Supplier" above, or click "Chat Now!".   We provide 24-hour service!

Q: How can I get free samples?
A: Only carbon brush for power tools/automobiles/motorcycle----no more than 4 sets for each model is free of charge.

Q:How to order?
A:Quotation→Price comfirming→Sign a contract→Mass production→Delivery

Q:How to pay?
A:30% T/T deposit.→70% balance by T/T against B/L copy.

Q:How to get after-sales service?
A:You can contact with your appointed sales.
    You can also get in touch with our Quality Assurance Department: zdatzddt.com

Company Information

Sic Graphite Crucible for Melting Metals

Q:Can a graphite crucible be used for titanium melting?: No, a graphite crucible cannot be used for titanium melting. Titanium has a very high melting point of 1,668 degrees Celsius (3,034 degrees Fahrenheit), which exceeds the maximum temperature capability of graphite (around 3,000 degrees Celsius or 5,432 degrees Fahrenheit). As a result, using a graphite crucible for titanium melting would cause the crucible to deteriorate and potentially contaminate the titanium. Instead, a crucible made of materials such as zirconium or ceramic should be used for titanium melting, which can withstand the high temperatures required for the process.

Q:Is there a single crystal mine in nature? The purification technology and principle of graphite ore? Please detail, thank you!: Chemical purification products: according to their production methods and fixed carbon content of different, natural flake graphite is divided into high purity graphite, high carbon graphite, medium carbon graphite, low-carbon graphite four kinds.

Q:What special attention should be paid to the use of graphite crucible in vacuum induction melting of titanium alloy?: In the smelting of titanium alloy, because there are a lot of active element Ti in the alloy, it is easy to react with C, N, O and other elements, resulting in the change of alloy composition

Q:Can a graphite crucible be used for melting magnetic materials?: Using a different grammatical structure and expressions: It is not possible to use a graphite crucible for melting magnetic materials. Graphite, being a non-magnetic substance, lacks the capacity to create or maintain a magnetic field. Consequently, it is unsuitable for melting magnetic materials as it cannot effectively engage with or confine them.

Q:Why do laboratory crucibles use ceramics instead of glass?: Because the glass has a softening temperature, and the temperature is below 1000 DEG C, therefore, made of glass crucible at high temperature when the heating crucible may be softening deformation, and the glass crucible should not contact with alkaline substances.

Q:The difference between atomic absorption pyrolytic graphite tube and common graphite tube: In addition to its excellent performance, flame atomic absorption has been added with an on-line dilution device and switchable single - and double - path optical systems. The graphite furnace atomic absorption spectrometer adopts transverse heating graphite tube, the heating speed can be as high as 3800K/ seconds, and can set up as many as 30 heating steps to be suitable for various applications.

Q:How do you prevent contamination from the graphite crucible during melting?: To minimize contamination from the graphite crucible during the melting process, several steps can be taken: 1. Thoroughly clean the graphite crucible before each use. This involves removing any leftover materials from previous melts, such as slag or impurities, using an appropriate cleaning agent or solvent. It is crucial to ensure that the crucible is completely dry before proceeding to the next step. 2. Apply a protective coating to the graphite crucible to prevent contamination. This can be achieved by using boron nitride or other suitable coatings, which create a barrier between the molten material and the crucible. Not only does this coating prevent the crucible from reacting with the melt, but it also facilitates easy removal of the solidified material. 3. Prior to adding the material to be melted, it is recommended to preheat the graphite crucible. This helps eliminate any remaining moisture or contaminants that may be present, thereby reducing the risk of contamination during the melting process. 4. Handle the graphite crucible with care while melting to avoid introducing contaminants. The use of appropriate tools like tongs or gloves can prevent direct contact with the crucible, therefore preventing contamination from oils, greases, or other substances present on the hands. 5. In certain cases, it may be beneficial to conduct the melting process in a controlled atmosphere to prevent contamination. This can be achieved by employing an inert gas, such as argon or nitrogen, to create a protective atmosphere around the crucible. This safeguards against oxidation or reaction with the crucible material. By adhering to these preventive measures, the risk of contamination from the graphite crucible during the melting process can be minimized, ensuring the purity and integrity of the resulting melt.

Q:Can a graphite crucible be used with gas burners or torches?: Yes, a graphite crucible can be used with gas burners or torches. Graphite crucibles are known for their high heat resistance and durability, making them suitable for use with gas burners or torches. They can withstand extremely high temperatures and are often used in applications such as melting metals, glass, or other materials. The high thermal conductivity of graphite allows for efficient heat transfer, making it an ideal choice for such high-temperature applications. However, it is important to ensure that the crucible is properly sized and designed for the specific gas burner or torch being used to prevent any potential damage or safety hazards.

Q:How does the density of graphite crucibles affect their performance?: The performance of graphite crucibles is significantly influenced by their density. These crucibles find wide application in high-temperature scenarios such as metal and alloy melting. The density of the crucible impacts its strength, thermal conductivity, and resistance to thermal shock. Generally, a higher density graphite crucible is preferred due to its superior mechanical strength and durability. This is especially important in applications involving frequent heating and cooling cycles, as a lower density crucible may be susceptible to cracking or damage. A higher density crucible can endure higher temperatures and offers better resistance against the corrosive effects of various molten materials. Additionally, density plays a role in the thermal conductivity of the crucible. A higher density graphite crucible tends to have higher thermal conductivity, enabling more efficient heat transfer between the crucible and the material being melted. Consequently, this leads to faster melting times and enhanced overall performance. Moreover, the density of the crucible affects its resistance to thermal shock. Thermal shock occurs when there is a sudden temperature change, resulting in internal stress within the material. A higher density crucible generally exhibits greater resistance to thermal shock, thereby reducing the likelihood of cracking or failure during the melting process. To summarize, the performance of graphite crucibles is directly influenced by their density in terms of mechanical strength, thermal conductivity, and resistance to thermal shock. It is crucial to select a crucible with the appropriate density for a specific application to ensure optimal performance and longevity.

Q:What are the common sizes available for graphite crucibles?: The common sizes available for graphite crucibles range from small ones that can hold a few grams of material to larger ones that can hold several kilograms.

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