Hydrodynamic core of Baoji Dingding titanium | titanium alloy impeller with high efficiency and corrosion resistance

As the "power heart" of fluid machinery such as pumps, fans and compressors, the impeller's aerodynamic performance, corrosion resistance and strength directly determine the conveying efficiency and service life of the equipment. In harsh working conditions such as chemical corrosive media, marine brine and pharmaceutical clean fluid, the traditional metal impeller is prone to corrosion wear and efficiency degradation. Relying on the material advantages and precision forming technology of "China Titanium Valley", Baoji Dingding titanium focuses on the R&D and production of TA2 pure titanium and TC4, TC11 titanium alloy impellers, strictly follows the gb/t 12469 and API 610 standards, and realizes the impeller blade profile error ≤ 0.02mm and dynamic balance accuracy g2.5 through the process of "integral forging+five axis NC machining", which is perfectly suitable for high-end equipment such as chemical centrifugal pumps, marine desalination pumps, medical and health pumps.

1、 Core performance advantage: titanium alloy solves the pain point of impeller industry

According to the different requirements of impeller "corrosion resistance, strength and efficiency" under different working conditions, TA2, TC4 and TC11 form a complementary performance system, achieving a qualitative breakthrough compared with stainless steel and cast iron impellers:

TA2 pure titanium impeller: corrosion resistant and clean

The purity is ≥ 99.6%, the density of the surface oxide film is 99.9%, and the corrosion rate in 5% hydrochloric acid and 30% sulfuric acid is ≤ 0.0001mm/year; There is no heavy metal precipitation, which meets the food grade GB 4806.11 and pharmaceutical GMP standards, and is suitable for clean and strong corrosion scenes.

TC4 titanium alloy impeller: strong, tough and efficient

Ti-6Al-4V composition, tensile strength ≥ 960mpa, hardness hrc30-35; The blade has high forming accuracy, the fluid resistance is 15% lower than that of the stainless steel impeller, and the conveying efficiency is increased by 8-12%, which is the cost-effective choice for general industrial scenarios.

TC11 titanium alloy impeller: high temperature wear resistance

With the addition of ti-6.5al-3.5mo, the temperature resistance is up to 500 ℃, and the creep rate at 480 ℃ is ≤ 0.001%/1000h; the surface can be nitrided, the hardness is increased to hrc40, and the wear resistance is 3 times higher than TC4, which is suitable for high-temperature fluid scenarios.

Common advantage: light weight and energy saving

The density is only 4.51g/cm ³, which is 45% lighter than the stainless steel impeller, and the starting power of the equipment is reduced by 20%; The whole forging has no weld, high fatigue strength, and the service life is 3-5 times longer than that of the traditional impeller.

2、 Precise specification system: adapt to the requirements of fluid machinery in the whole scene

Combining the flow and pressure parameters of pumps, fans and other equipment, matching accurate specifications according to material characteristics, providing standardized and customized impeller solutions, covering the full size range of φ 50mm- φ 2000mm:

3、 Core application scenario: all dimensional adaptation from industry to people's livelihood

1. chemical industry: safe transportation of corrosion-resistant impeller

The acid-base medium in the chemical industry is highly corrosive, and the titanium alloy impeller can avoid leakage and pollution:

-TA2 pure titanium impeller is used for 30% sulfuric acid delivery pump. The φ 500mm specification works continuously for 2000 hours without corrosion. Compared with 316L stainless steel impeller, the service life is extended from 6 months to 5 years, and the leakage rate is reduced from 0.5% to 0.001%, reducing safety risks;

-TC4 impeller is suitable for chemical centrifugal pump. The blade profile error is ≤ 0.02mm, the fluid resistance is reduced by 15%, the daily delivery capacity of a single pump is increased from 800 tons to 900 tons, the energy consumption is reduced by 12%, and the annual electricity cost is saved by 150000 yuan.

2. marine engineering: long term stable operation of salt resistant impeller

The marine environment is high in salt and humidity, and the titanium alloy impeller can resist corrosion and biological adhesion:

-TC4 impeller is used for seawater desalination high-pressure pump. The φ 800mm specification 5000 hour salt spray test has no corrosion and is resistant to the adhesion of marine organisms, so that the cleaning cycle of the pump body is extended from 1 month to 6 months, and the equipment operation efficiency is stable at more than 88%;

-TA2 impeller is suitable for ship cooling pump, with weight reduced by 45% compared with stainless steel, load of ship propulsion system reduced, navigation fuel consumption reduced by 8%, and annual fuel cost saved by 200000 yuan.

3. food and medicine: health and safety guarantee of clean impeller

The cleanliness requirements of food and medicine convection body are extremely high, and the pure titanium impeller meets the stringent standards:

-TA2 pure titanium impeller is used for dairy product delivery pump. The surface Ra of φ 300mm specification is ≤ 0.4 μ m, and it is easy to clean without dead angle. The microbial residue after CIP online cleaning is ≤ 1 cfu/100cm ², which meets the HACCP system standard for dairy products;

-TA2 impeller is suitable for medical infusion pump, without heavy metal precipitation, and the pollution rate of medical solution is ≤ 0.001%. It has passed GMP certification and serves leading enterprises such as Hengrui medicine and Mengniu.

4. high temperature power: efficient transmission support of wear-resistant impeller

In the high temperature fluid scene, titanium alloy impeller can maintain stable performance and efficient transmission:

-TC11 impeller is used for 450 ℃ high temperature heat transfer oil pump. The φ 600mm specification has no creep at high temperature. The blade hardness maintains hrc30. Compared with the superalloy impeller, the weight is reduced by 50%, and the starting power of the equipment is reduced by 20%;

-TC4 nitriding impeller is used in steam compressor, the surface hardness is increased to hrc40, the wear resistance is increased by 3 times, the impeller wear rate is reduced from 0.1% to 0.02% per year, and the service life is extended to 5 years.

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

1. customized design guarantee: use CFD fluid dynamics simulation to optimize blade profile to ensure accurate matching of flow and head parameters; Select suitable materials according to the requirements of working conditions, and provide material selection report and performance prediction;

2. raw material and process control: use ≥ 99.8% high-purity sponge titanium, and strictly control the content of Al (5.5% -6.75%) and V (3.5% -4.5%) by TC4; The overall forging improves the density, and the five axis machining ensures the accuracy and avoids the hidden danger of weld fatigue;

3. full inspection and verification: all passed the dynamic balance test (g1.0-g2.5), dimensional accuracy test (CMM), corrosion resistance test (salt spray/acid-base immersion), and nondestructive testing (ut/mt test, without internal defects);

4. after sales and service guarantee: provide 1-year warranty service, and regularly visit the equipment operation status; Engineers can be sent to guide the installation and commissioning on site to solve the problem of impeller and equipment adaptation.

Baoji Dingding titanium: the core supplier of titanium alloy impeller

The company is located in Baoji high tech Zone, the "China Titanium Valley". It has 4 special production lines for titanium alloy impellers, with an annual output of 20000 pieces. It has passed the ISO9001 quality management system and API 610 pump parts certification. With the ability of "customized design+precision manufacturing+efficient service", the products serve Wanhua chemical, CNOOC, Mengniu and other leading enterprises, and become the preferred partner of titanium alloy impeller.

Technical advantages: CFD simulation design+five axis precision machining

Complete qualifications: ISO9001, API 610, GB 4806.11

Service guarantee: customized scheme+on-site technical support

Solution consultation: send equipment model/performance requirements to 530975155@qq.com Free access to CFD simulation solutions and quotations