Corrosion resistance and wear resistance core of Baoji Dingding titanium | titanium and titanium alloy ball in multiple scenes

With the comprehensive characteristics of "light weight, corrosion resistance, high hardness and wear resistance, and biocompatibility", titanium and titanium alloy balls have become key components in the fields of bearing transmission, precision grinding, medical implantation, aerospace and so on. Relying on the advantages of the whole industry chain of "China Titanium Valley", Baoji Dingding titanium focuses on the R&D and production of TA1, TA2 pure titanium balls and TC4, TC11 titanium alloy balls, strictly follows the standards of gb/t 3620.1 and ASTM F136, and realizes the ball roundness error ≤ 0.001mm and surface roughness RA ≤ 0.1 μ m through the process of "vacuum melting+precision rolling+grinding and polishing", perfectly adapting to the multi-dimensional requirements from civil industry to high-end equipment, and solving the pain point of "corrosion failure and weight redundancy" of traditional steel balls and ceramic balls.

1、 Core performance advantages: differentiated value of pure titanium and titanium alloy

According to the requirements for "corrosion resistance, strength and precision" in different scenarios, pure titanium (TA1, TA2) and titanium alloys (TC4, TC11) form a complementary system, with performance advantages far beyond those of traditional materials:

Pure titanium ball (ta1/ta2): corrosion resistant and clean

The purity is ≥ 99.6%, the surface oxide film is dense, and the corrosion rate of TA2 in 5% hydrochloric acid is ≤ 0.0001mm/year; Excellent biocompatibility, no heavy metal precipitation, in line with medical grade standards, suitable for clean and corrosive scenes.

TC4 titanium alloy ball: strength and toughness balance

Ti-6Al-4V composition, tensile strength ≥ 960mpa, hardness hrc30-35; Temperature resistance ≤ 400 ℃, impact toughness ≥ 20j/cm ², which is the cost-effective choice for industrial transmission and grinding, and the weight is reduced by 45% compared with the steel ball.

TC11 titanium alloy ball: high temperature wear resistance

With the addition of ti-6.5al-3.5mo, the temperature resistance reaches 500 ℃, and the high temperature hardness remains above hrc28; High temperature creep rate in 5000 hours ≤ 0.001%, suitable for aviation and high temperature equipment scenarios.

Common advantage: lightweight and precise

The density is only 4.51g/cm ³, which is 45% lighter than steel ball and 70% lighter than tungsten steel ball; Roundness error ≤ 0.001mm, high rotation accuracy, can reduce equipment energy consumption and wear.

2、 Precise specification system: suitable for the use needs of the whole scene

Combined with the conventional use of titanium and titanium alloy balls, it matches accurate specifications according to material characteristics, provides standardized and customized services, covering the full size range of φ 1mm- φ 200mm:

3、 Core application scenario: deep adaptation for general use

1. industrial transmission field: advantages of light weight and wear resistance of bearing balls

Industrial bearings have strict requirements on the strength, accuracy and life of the ball. Titanium and titanium alloy balls can reduce equipment losses:

-TC4 titanium alloy ball is used for spindle bearings of precision machine tools. The roundness error of φ 20mm specification is ≤ 0.001mm, the rotation accuracy is increased by 20%, and the weight is reduced by 45% compared with the steel ball. The spindle speed is increased from 8000rpm to 12000rpm, and the processing efficiency is increased by 30%;

-TC11 titanium alloy ball is suitable for aero-engine bearings. The hardness is maintained at 480 ℃ for hrc285000 hours without wear. Compared with the high-temperature alloy ball, the weight is reduced by 50% and the engine load is reduced.

2. precision manufacturing: clean and efficient value of grinding balls

Precision grinding needs to avoid ball pollution and workpiece damage, and titanium and titanium alloy balls can be processed cleanly:

-TA2 pure titanium ball is used for the grinding of semiconductor silicon wafer. The surface Ra of φ 10mm specification is ≤ 0.05 μ m. There is no residual metal impurities in the grinding process. The surface finish of silicon wafer is improved to ra0.01 μ m, and the qualified rate is increased from 92% to 99.5%;

-TC4 titanium alloy ball is used for optical glass polishing, with moderate hardness of hrc32, which not only ensures polishing efficiency, but also avoids glass scratch. Compared with ceramic ball, the wear rate is reduced by 60%, and the replacement cycle is extended from 1 month to 6 months.

3. medical and health field: biocompatibility of implant ball

Medical implants have high requirements for material safety, and pure titanium and TC4 titanium alloy balls meet the requirements:

-TC4 titanium alloy ball is used for artificial hip joint ball head, with φ 28mm specification surface polishing RA ≤ 0.02 μ m, biocompatibility in accordance with ASTM F136, matching with UHMWPE liner, friction coefficient ≤ 0.001, and service life of more than 15 years;

-TA2 pure titanium ball is used for dental implant positioning, without heavy metal precipitation, and has good compatibility with human bones. The difference rate after surgery is ≤ 0.1%. It has served many dental medical enterprises.

4. corrosion condition field: long-term stable support of anti-corrosion ball

In chemical, marine and other corrosion scenarios, titanium and titanium alloy balls can resist extreme medium erosion:

-TA2 pure titanium ball is used for stirring ball of chemical reaction kettle. The φ 50mm specification has no corrosion during continuous operation in 30% sulfuric acid solution for 2000 hours, which is 8 times longer than that of stainless steel ball, and reduces equipment maintenance cost;

-TA1 pure titanium ball is used for the valve core ball of seawater desalination equipment. It has no corrosion after 5000 hours of salt spray test, and the sealing performance is stable, so that the purity of water produced by the equipment is increased to 99.9%, which meets the drinking water standard.

4、 Whole process quality assurance: strict control from smelting to finished products

1. exclusive control of raw materials: high purity sponge titanium ≥ 99.8% is used. The content of Al (5.5% -6.75%) and V (3.5% -4.5%) is strictly controlled by TC4. Medical grade raw materials pass the biocompatibility test additionally, and each batch is traceable;

2. precision manufacturing process: vacuum consumable arc furnace melting ensures uniform composition, multi pass rolling improves the density of the ball, five axis grinder control accuracy, and medical grade products adopt ultra precision polishing process;

3. all tests and verifications: they have passed roundness test (laser caliper), hardness test (Vickers hardness tester), corrosion resistance test (salt spray/acid-base immersion), surface roughness test (atomic force microscope), and provided ASTM F136 certification for medical grade;

4. customized surface treatment: provide nitriding (wear resistance), passivation (corrosion resistance), ultra precision polishing (medical) and other services to meet the performance upgrading needs of different scenarios.

Baoji Dingding titanium: the core supplier of titanium and titanium alloy balls

The company is located in Baoji high tech Zone, the "China Titanium Valley". It has four special production lines for titanium balls, with an annual production capacity of 500 tons. It has passed the ISO9001 quality management system and medical GMP supporting qualification. The products serve Sany Heavy Industry, Mindray medical, COMAC and other leading enterprises, and become the preferred partner of titanium and titanium alloy balls.

Technical advantages: core competence of titanium ball precision forming and ultra precision polishing

Complete qualification: ISO9001, ASTM F136

Service guarantee: 24-hour technical support, free condition adaptation test

Scheme consultation: send sphere size and purpose requirements to 530975155@qq.com Free access to adaptation schemes and samples