A quartz stirring rod is a common laboratory instrument primarily used for stirring liquids to accelerate the dissolution of solutes and promote miscibility.
diameter | length |
---|---|
10mm | 300mm |
10mm | 600mm |
12mm | 300mm |
12mm | 600mm |
14mm | 300mm |
14mm | 600mm |
15mm | 300mm |
15mm | 600mm |
15mm | 1000mm |
16mm | 300mm |
16mm | 600mm |
16mm | 1000mm |
16mm | 1200mm |
18mm | 300mm |
18mm | 600mm |
18mm | 1000mm |
18mm | 1200mm |
20mm | 300mm |
20mm | 600mm |
20mm | 1000mm |
20mm | 1200mm |
22mm | 300mm |
22mm | 600mm |
22mm | 1000mm |
22mm | 1200mm |
25mm | 300mm |
25mm | 600mm |
25mm | 1000mm |
25mm | 1200mm |
28mm | 300mm |
28mm | 600mm |
28mm | 1000mm |
28mm | 1200mm |
30mm | 300mm |
30mm | 600mm |
30mm | 1000mm |
30mm | 1200mm |
32mm | 300mm |
32mm | 600mm |
32mm | 1000mm |
32mm | 1200mm |
35mm | 300mm |
35mm | 600mm |
35mm | 1000mm |
35mm | 1200mm |
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- Payment method:
By T/T or prepayment,
It depends on the quantity of the order. - Delivery time:
According to the order quantity. - Shipping method:
By sea or by air,
It depends on the customer.
Remarks:
To confirm the order,
the following parameters are required:
① outer diameter ② length ③ quantity
Contenu de la propriété | Valeurs immobilières |
---|---|
SiO2 | 99.99% |
Densité | 2,2×10³ kg/cm³ |
Dureté | 5,5 - 6,5 Échelle de Mohs 570 KHN 100 |
Résistance à la traction | 4,8×10⁷ Pa (N/mm2) (7000 psi) |
Résistance à la compression | >1,1×10⁹ Pa (160 000 psi) |
Coefficient de dilatation thermique | 5,5×10-⁷ cm/cm-°C (20°C-320°C) |
Conductivité thermique | 1,4 W/m-°C |
Chaleur spécifique | 670 J/kg-°C |
Point d'adoucissement | 1730°C (3146°F) |
Point de recuit | 1210°C (2210°F) |
Point de contrainte | 1120°C (2048°F) |
Température de travail | 1200°C (2192°F) |
Résistivité électrique | 7×10⁷ ohm cm (350°C) |
Taille | Sur mesure |
Logo | Acceptation de logos personnalisés |
![](https://axquartz.com/wp-content/uploads/2024/12/石英棒车间.webp)
There are two primary methods for producing quartz rods: the continuous method and the flame fusion method (also known as the gas fusion method).
Continuous Method: In this method, quartz sand is fed from the top into a furnace, which comprises a metallic quartz crucible surrounded by electric heating elements. The quartz sand melts at high temperatures. The molten material then passes through a shaping orifice at the bottom of the crucible, producing rods, tubes, sheets, or other various specified product forms.
Flame Fusion Method: This method involves using hydrogen and oxygen to melt colorless quartz crystal. The molten material is formed into quartz glass through the melting and congealing of crystalline particles in the flame. The quartz glass is then removed from the flame through different methods and processed into quartz rods of the desired shape.
High Heat Resistance
Quartz material exhibits outstanding heat resistance, allowing for use in various temperature environments, including high-temperature cooking or experimental conditions.
Hardness and Durability
The hardness of quartz makes it resistant to wear and tear, effectively protecting the original shape and texture of ingredients while prolonging the service life of the stirring rod.
Good Light Transmission
Quartz stirring rods typically have good light transmission, making it easier to observe ingredient changes during the stirring process.
Diverse Designs
The structure of a quartz stirring rod generally includes the rod body, head, and connecting rod. Heads are designed in various shapes, such as disks or cones, to meet different stirring needs. Connecting rods are typically equipped with adjustment knobs for easy adjustment of the stirring rod length.
Scénario d'application
Chemical Experiments
In chemical experiments, quartz stirring rods are commonly used for stirring solutions and mixing reagents to ensure uniformity and accuracy throughout the experimental process. Their high-temperature resistance and corrosion resistance make them particularly suitable for experiments requiring high temperatures or strong corrosive reagents.
Quartz stirring rods offer several advantages over plastic stirring rods, including higher temperature resistance, greater chemical stability, superior structural strength, reduced risk of breakage, and a longer service life.
Quartz stirring rods are suitable for the following experimental environments:
1. High-Temperature Environments: Quartz stirring rods can be used for extended periods at temperatures up to 1100°C, with short-term use at temperatures up to 1730°C, making them ideal for high-temperature heating experiments.
2. Chemically Demanding Environments: Quartz stirring rods exhibit excellent chemical stability, with almost no reactivity with acids or bases, except for hydrofluoric acid and hot phosphoric acid. This makes them suitable for use in corrosive heating applications.
Quartz stirring rods demonstrate excellent stability in high-temperature experiments and do not deform easily. Quartz glass has a low thermal expansion coefficient, enabling it to withstand rapid temperature changes without shattering. Even when quartz glass is heated to around 1100°C and then placed in room-temperature water, it will not crack. Furthermore, quartz stirring rods possess strong heat resistance, with a short-term use temperature of up to 1300°C and a long-term use temperature of 1100°C.
Questions fréquemment posées
Le verre de quartz est un matériau dur et cassant doté d'excellentes propriétés physiques et chimiques, d'une dureté mécanique extrêmement élevée, d'une bonne isolation électrique, d'une résistance aux températures élevées et à la corrosion, d'un retard faible et stable, d'une bonne transmission de la lumière, etc. Il est largement utilisé dans les semi-conducteurs, l'optique, l'électricité, la chimie, l'aérospatiale, l'automobile et d'autres domaines. Les matériaux durs et cassants sont difficiles à traiter, et de nombreux domaines ont un besoin urgent de procédés de coupe avec un faible effondrement des arêtes, une perte de matériau réduite, une faible rugosité de la section transversale et une large gamme d'épaisseurs de coupe. La méthode traditionnelle de découpe du verre de quartz est la découpe mécanique, c'est-à-dire la découpe à la meule. Les méthodes de découpe non traditionnelles comprennent la découpe au jet d'eau, la découpe par fil à décharge électrochimique, la découpe au laser en continu, etc. La découpe mécanique est peu coûteuse, mais le contact entre la meule et le matériau entraîne une usure importante de l'outil, et le matériau est facilement contaminé par l'outil. Le verre de quartz est sujet à l'effondrement des arêtes, aux microfissures et aux contraintes résiduelles, ce qui affecte la résistance et les performances du matériau ! Il est difficile de réaliser une découpe en courbe et nécessite un post-traitement, tel que le meulage et le polissage. La découpe au laser n'entre pas directement en contact avec le matériau, n'a pas de contrainte de contact et peut réaliser des découpes de courbes complexes. Le laser picoseconde présente les avantages suivants : petit diamètre du spot, haute précision, temps d'action court avec le matériau et petite zone d'action. Il convient au traitement des matériaux durs et fragiles.
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