W and Mo Parts in Sapphire Crystal Furnace Thermal Field

FOTMA specialized in Sapphire crystal growth furnace "thermal field " parts.Set the domestic traditional process, structure, and in recent years the foreign advanced type furnace,Continue to market the sapphire crystal furnace tungsten meshes for heating elemen t, long cage structure tungsten heater, the tungsten crucible/molybdenum crucible, heating element, tungsten tube, heat insulation screen, support and base, seed rod, crucible cover etc

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W and Mo Parts in Sapphire Crystal Furnace Thermal Field

FOTMA specialized in Sapphire crystal growth furnace "thermal field " parts.Set the domestic traditional process, structure, and in recent years the foreign advanced type furnace,Continue to market the sapphire crystal furnace tungsten meshes for heating elemen t, long cage structure tungsten heater, the tungsten crucible/molybdenum crucible, heating element, tungsten tube, heat insulation screen, support and base, seed rod, crucible cover etc. sapphire crystal growth furnace thermal field components.And we can provide customers with high-quality 30 kg, 60 kg, 90 kg, 120 kg full set of sapphire crystal growth furnace tungsten,molybdenum parts of thermal field and thermal field.

Tungsten heating elements :
Purity: 99.95%
Density: 19.1g/cm3 Application temperature environment: ≤2400℃
Cooper base: Cu≥99.95%
Density:≥8.8%
Application temperature environment: ≤1000℃

Tungsten Rod Heater	Tungsten Rod Diameter	Diameter Tolerance	Heating Body Width	Width Tolerance	Heating Body Height	Height Tolerance	Bottom Shape and Bending Radius Design
	3.0	±0.1	≤650	±1	≤1200	±1	Customized According to Customer Requirements
	4.0	±0.1	≤600	±1	≤1150	±1
	5.0	±0.1	≤550	±1	≤1100	±1
	6.0	±0.2	≤550	±1	≤1050	±1
	7.0	±0.2	≤500	±1	≤1000	±1
	8.0	±0.2	≤500	±1	≤950	±1
	9.0	±0.2	≤450	±1	≤900	±1
Copper Base	Customized according to customer requirements, processed by CNC machine tools.

Tungsten Rod Heater	Serial Number	Production Process	Production Equipment	Quality Check Point
	1	Tungsten rod		Physical and chemical properties; Length, straightness, diameter, ovality; Surface quality;
	2	Clean
	3	Test
	4	Bending or Stamping	Bending Machine	Length and width scale; Arc radius; Surface quality;
	5	Correction	Correction Die
	6	Test
	7	Wire Cutting	Wire Cutting	Surface quality; Overall dimensions, arc radius, tolerance according to the drawing; Present the quality certificate;
	8	Clean
	9	Test
	10	Package

Tungsten heater components as sapphire crystal growth furnace heat source, the tungsten crucible inside the liquid turbulence, radial temperature gradient has a decisive role. As a result, high purity, high density, well-made, reasonable design of tungsten heater component to control the quality of the sapphire crystal, the service life of the energy conservation and is of great significance.

Product name: tungsten net heating element
Material grades: W1
Execution standard: GB3875-83
Product specifications: Ф0.3-Φ 4
The surface of the tungsten wire: bright surface Tungsten wire mesh is composed of tungsten preparation for ultra high temperature vacuum annealing furnace.

Tungsten 、molybdenum crucible

Technological process: W、Mo powder—pressed—sintered—forged—technological processing— finished products inspected—packaged—delivered.

Product	Tungsten and Molybdenum Crucible
Surface	Turning, grinding, sintering crucibles
Purity	99.95%
Density	≥10.1g/cm⊃3;
Specification	Ф30-450mm(Maximum outer diameterФ450mm, Maximum inner diameterФ430mm) Height 30-800mm
Executive Standard	American StandardB386 B387 and GB

Impurity Content Report（%）
Fe	Ni	C	AL	O	N
0.004	0.0006	0.001	0.0005	0.0048	0.002
Si	Ca	Mg	Cd	Sb	Sn
0.0013	0.001	0.0005	＜0.001	＜0.0005	＜0.0005
P	Cu	Pb	Bi	Mo
＜0.001	＜0.0005	＜0.0005	＜0.0005	＞99.95%

Diameter(mm)	Tolerance
＜6	±0.1
6—30	±0.2
30—120	±0.3
120—400	±0.5
400—1000	±0.8

Seed Crystal Clip

A、Physical and chemical properties:
1、Purity: Mo≥99.95%、W≥99.95%;
2、Density: Mo≥10.2g/cm⊃3;、W≥19.2g/cm⊃3;;
3、Temperature environment: ≤2300℃;
4、Thermal expansion coefficient (0—1600C):Mo:6×10-6、W:4.98×10-6
5、Yield strength: Mo(1600℃):50MPa、W(2080℃):25MPa;
6、Perfect re-crystallize temperature :W 2050℃、Mo 1050℃.

B、Product dimensions and tolerances: seed crystal rod custom processing specific dimensions and tolerances according to customer's drawings. More than long sapphire crystal furnace tungsten molybdenum parts according to the drawings of the technical requirements for the design and manufacture, meet the requirements of customers, implement GB/T1804-200, GB1801-79, GB3875-83, GB8918-2006 and FOTMA internal control standard—inspection—packaging—delivery technology processing.

W and Mo Parts sapphire crystal furnace Thermal Field Furnace

W and Mo Parts in Sapphire Crystal Furnace Thermal Field

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