Titanium Screw

Titanium screw is a tool concept, its classification has round head screw, tapping screw, hexagon screw, countersunk head screw, word screw and so on. According to the needs of manufacturers, can be customized according to the requirements of different specifications and types of titanium screws, to meet the needs.

Products: Titanium screw titanium bolt

Material: TA1, TA2, TC4, Gr1, Gr2, Gr5

Specifications: M4 to M25 x L

Standard: GB DIN ISO

1. Titanium screws: round head screws, self tapping screws, hexagonal screws, countersunk head screws, one word screws, square screws, double head screws, non-standard screws, fastening screws, standard screws, flat head screws

2.. Titanium bolts: hexagonal bolts, square neck bolts, semi-round head bolts, countersink head bolts, carriage bolts, cushion combination bolts, all kinds of instrument lathe bolts, non-standard bolts use: electroplating, aluminum oxidation (anode decomposition), chemical industry, watch industry, medicine, farming, electronic hardware, plastic and other industries.

3. Titanium hexagon nuts, self-locking nuts, ring nuts, kappa nuts, slotted nuts, hexagon nuts for precision machinery, non-standard nuts.

Heat treatment of titanium alloy screws different phase compositions and structures can be obtained by adjusting the heat treatment process.The spiculate structure has high durability, creep strength and fracture toughness. Equiaxial and needle-like mixed tissues have better comprehensive properties.

The commonly used heat treatment methods include annealing, solution and aging treatment. The purpose of annealing is to eliminate internal stress, improve plasticity and structure stability, and obtain better comprehensive properties. Generally, the annealing temperature of α alloy and (α+β) alloy is 120 ~ 200℃ below the transition point of (α+β) -- →β phase. The solution and aging treatments are rapid cooling at high temperature to obtain martensite α 'phase and metastable β phase, and then holding at medium temperature to decompose these metastable phases to obtain fine dispersed second phase particles such as α phase or compound, which can strengthen the alloy. Usually (alpha + beta) alloy quenching in alpha + beta) -- - > beta phase transition point below 40 ~ 100 ℃, metastable beta alloy quenching in alpha + beta) -- - > beta phase transition point above 40 ~ 80 ℃. The aging temperature is generally 450 ~ 550℃. In addition, in order to meet the special requirements of the workpiece, double annealing, isothermal annealing, β heat treatment, deformation heat treatment and other metal heat treatment processes are also used in industry.

Titanium screw advantages:

1, corrosion resistance: titanium is a very active metal, its equilibrium potential is very low, thermodynamic corrosion tendency in the medium.

2, small density, high specific strength: the density of titanium metal is 4.51g/cm3, higher than aluminum and lower than steel, copper, nickel, but the specific strength is located in the first metal.

3, good low temperature resistance: titanium alloy TA7 (Ti-5Al-2.5Sn), TC4(Ti-6Al-4V) and Ti-2.5Zr-1.5Mo are representative of the low temperature titanium alloy, its strength increases with the decrease of temperature, but the plasticity changes little. It keeps good ductility and toughness at low temperature of -196-253℃, avoids cold brittleness of metal, and is an ideal material for low-temperature containers, storage boxes and other equipment.

4, good heat resistance: the new titanium alloy can be used in 600℃ or higher temperature for a long time.

5. The tensile strength is close to its yield strength: the performance of titanium shows that its yield ratio (tensile strength/yield strength) is high, indicating that the plastic deformation of metal titanium material is poor when forming. Because the ratio of yield limit to elastic modulus of titanium is large, the springback ability of titanium forming is large.

6. Low elastic modulus: the elastic modulus of titanium at room temperature is 106.4 high standard a, 57% of steel.

7, suction performance: titanium screw is a chemical properties of a very active metal, at high temperature can react with many elements and compounds. Titanium aspiration mainly refers to the reaction with carbon, hydrogen, nitrogen and oxygen at high temperature.

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