CN104831121B - A kind of cardiovascular power pump - Google Patents
A kind of cardiovascular power pump Download PDFInfo
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- CN104831121B CN104831121B CN201510207430.5A CN201510207430A CN104831121B CN 104831121 B CN104831121 B CN 104831121B CN 201510207430 A CN201510207430 A CN 201510207430A CN 104831121 B CN104831121 B CN 104831121B
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Abstract
A kind of cardiovascular power pump, kinetic pump includes a pump housing, and the pump housing includes: the cast titanium alloy pump housing, the titanium nitride series ceramic material layer of pump housing outer surface and the titanium carbide series ceramic material layer of pump housing inner surface, the composition of titanium alloy of the present invention is simple；Titanium alloy to this composition carries out the surface treatment procedure of pickling and passivation, it is to avoid the problems such as any surface stain occurs, makes acquisition surface clean and tidy；Specific pickle and the composition of passivating solution, the use of these chemical agents, be greatly saved the cycle that surface processes, and the effect processing surface is the most excellent.
Description
Technical field
The present invention relates to a kind of cardiovascular power pump, belongs to implantable pump, belongs to technical field of medical instruments.
Background technology
At present, apply extracorporeal circulation equipment to carry out heart surgery department and have become as the one for the treatment of heart disease
Conventional method.Cardiac insufficiency in various degree likely occurs after before surgery, needs the means such as heart-assist device to replace
For the pump function of heart, maintain systemic blood circulation, improve native heart function.Blood pump is the core group of ventricular assist device
Become part, provide power for ventricular assist device.Ventricular assist device blood pump many employings air sac pressing of at present commercialization or
, there is the complication such as aeroembolism, haemolysis in centrifugal driving principle.Existing pump housing material has been difficult to meet anti-hemolysis and antithrombotic etc. property
Can requirement.
Summary of the invention
A kind of technique that the present invention is aiming at the problems referred to above and proposes is simple, low cost, the anti-hemolysis heart of good performance
Vascular dynamics pump.
A kind of cardiovascular power pump, kinetic pump includes a pump housing, and the pump housing includes: the cast titanium alloy pump housing, pump housing outer surface
Titanium nitride series ceramic material layer and the titanium carbide series ceramic material layer of pump housing inner surface,
It is characterized in that, cast titanium alloy pump housing chemical composition is (weight): Al:13-14, Fe:9-10, Si:6-
7, Zn:4-5, Mg 1-2, Ni 0.7-0.8, Cu:0.5-0.6, Cr:0.2-0.3, Y:0.1-0.2, Zr:
0.07-0.08, Mn: 0.05-0.06, V:0.06-0.07, B:0.08-0.09, surplus is Ti and inevitable
Impurity；
Cast titanium alloy pump housing preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melts
Refining, cast: smelting temperature: 1810-1820 DEG C, pouring temperature is 1750-1760 DEG C；After the demoulding, the pump housing obtained is carried out at heat
Reason: first the pump housing is heated, is warming up to 850 DEG C, heating rate 300 DEG C/h, be incubated 4 hours, after be cooled to 550 DEG C,
Rate of temperature fall 100 DEG C/h, is incubated 6 hours, after be warming up to 700 DEG C, heating rate 100 DEG C/h, be incubated 2 hours, after again
Secondary be cooled to 350 DEG C, rate of temperature fall 50 DEG C/h, be incubated 7 hours, after be again cooled to 150 DEG C, rate of temperature fall 40 DEG C/little
Time, be incubated 4 hours, rear air cooling to room temperature,
Afterwards pump housing surface is carried out pickling and Passivation Treatment, wherein:
Pickle consists of (weight): take 98% dense H2SO410-35 part, HCL 20-30 part of 36.5%, propionic acid 5-10
Part, ethylenediamine 10-15 part, alkyl imidazoline quaternary ammonium salt 1-2 part；Water 20-25 part；
Passivating solution consists of (weight): polyimides 10-20 part, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane
4-10 part, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 8-15 part, sodium fluoborate 15-20 part, sulfuric acid 1-
4 parts, dialkyl dithiophosphoric acid oxygen molybdenum 20-25 part, water 25-35 part；
Pump housing outer surface after passivation is coated titanium nitride series ceramic material；Nitrogen is formed by being coated in pump housing outer surface
Changing titanium series ceramic material layer, titanium nitride series ceramic material layer thickness 0.4mm, titanium nitride series ceramic material composition of layer includes (weight
Amount): titanium nitride 30-40 part, titanium boride 20-30 part, tungsten carbide 10-15 part, carborundum 5-10 part, the pump housing after coating is entered
Row heating, be warming up to 850 DEG C, heating rate 250 DEG C/h, be incubated 6 hours, after be cooled to 650 DEG C, rate of temperature fall 100 DEG C/
Hour, be incubated 5 hours, after be again cooled to 350 DEG C, rate of temperature fall 75 DEG C/h, be incubated 9 hours, rear air cooling to room temperature,
Afterwards pump housing inner surface is coated titanium carbide series ceramic material；Carbonization is formed by being coated in pump housing inner surface
Titanium series ceramic material layer, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material composition of layer includes (weight):
Titanium carbide 70-80 part, titanium nitride 15-20 part, chromium carbide 10 parts, carborundum 10-15 part, the pump housing after coating is heated,
Be warming up to 650 DEG C, heating rate 200 DEG C/h, be incubated 2 hours, after be cooled to 450 DEG C, rate of temperature fall 100 DEG C/h, protect
Temperature 6 hours, after be again cooled to 150 DEG C, rate of temperature fall 50 DEG C/h, be incubated 9 hours, rear air cooling, to room temperature, obtains final pump
Body.
Described a kind of cardiovascular power pump, cast titanium alloy pump housing chemical composition is: Al:13, Fe:9, Si:
6, Zn:4, Mg 1, Ni 0.7, Cu:0.5, Cr:0.2, Y:0.1, Zr:0.07, Mn: 0.05, V:
0.06, B:0.08, surplus is Ti and inevitable impurity.
Described a kind of cardiovascular power pump, cast titanium alloy pump housing chemical composition is: Al:14, Fe:10, Si:
7, Zn:5, Mg 2, Ni 0.8, Cu:0.6, Cr:0.3, Y:0.2, Zr:0.08, Mn:
0.06, V:0.07, B:0.09, surplus is Ti and inevitable impurity.
Described a kind of cardiovascular power pump, cast titanium alloy pump housing chemical composition is: Al:13.5, Fe:9.5,
Si:6.5, Zn:4.5, Mg 1.5, Ni 0.75, Cu:0.55, Cr:0.25, Y:0.15, Zr:0.075,
Mn: 0.055, V:0.065, B:0.085, surplus is Ti and inevitable impurity.
Described a kind of cardiovascular power pump, titanium nitride series ceramic material composition of layer includes: titanium nitride 30 parts, titanium boride 20
Part, tungsten carbide 10 parts, 5 parts of carborundum.
Described a kind of cardiovascular power pump, titanium nitride series ceramic material composition of layer includes: titanium nitride 40 parts, titanium boride 30
Part, tungsten carbide 15 parts, 10 parts of carborundum.
Described a kind of cardiovascular power pump, titanium nitride series ceramic material composition of layer includes: titanium nitride 35 parts, titanium boride 25
Part, tungsten carbide 13 parts, 7 parts of carborundum.
Described a kind of cardiovascular power pump, titanium carbide series ceramic material composition of layer includes: titanium carbide 75 parts, titanium nitride 17
Part, chromium carbide 10 parts, 13 parts of carborundum.
Described a kind of cardiovascular power pump, pickle consists of: take 98% dense H2SO420 parts, the HCL 25 of 36.5%
Part, propionic acid 7 parts, ethylenediamine 13 parts, alkyl imidazoline quaternary ammonium salt 1.5 parts；23 parts of water.
Described a kind of cardiovascular power pump, passivating solution consists of: polyimides 15 parts, 2-(3,4-epoxycyclohexyl) second
Base trimethoxy silane 7 parts, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 12 parts, sodium fluoborate 17 parts,
3 parts of sulfuric acid, dialkyl dithiophosphoric acid oxygen molybdenum 23 parts, 30 parts of water.
A kind of manufacture method of cardiovascular power pump, kinetic pump includes a pump housing, and the pump housing includes: the cast titanium alloy pump housing,
The titanium nitride series ceramic material layer of pump housing outer surface and the titanium carbide series ceramic material layer of pump housing inner surface,
It is characterized in that, cast titanium alloy pump housing chemical composition is (weight): Al:13-14, Fe:9-10, Si:6-
7, Zn:4-5, Mg 1-2, Ni 0.7-0.8, Cu:0.5-0.6, Cr:0.2-0.3, Y:0.1-0.2, Zr:
0.07-0.08, Mn: 0.05-0.06, V:0.06-0.07, B:0.08-0.09, surplus is Ti and inevitable
Impurity；
Cast titanium alloy pump housing preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melts
Refining, cast: smelting temperature: 1810-1820 DEG C, pouring temperature is 1750-1760 DEG C；After the demoulding, the pump housing obtained is carried out at heat
Reason: first the pump housing is heated, is warming up to 850 DEG C, heating rate 300 DEG C/h, be incubated 4 hours, after be cooled to 550 DEG C,
Rate of temperature fall 100 DEG C/h, is incubated 6 hours, after be warming up to 700 DEG C, heating rate 100 DEG C/h, be incubated 2 hours, after again
Secondary be cooled to 350 DEG C, rate of temperature fall 50 DEG C/h, be incubated 7 hours, after be again cooled to 150 DEG C, rate of temperature fall 40 DEG C/little
Time, be incubated 4 hours, rear air cooling to room temperature,
Afterwards pump housing surface is carried out pickling and Passivation Treatment, wherein:
Pickle consists of (weight): take 98% dense H2SO410-35 part, HCL 20-30 part of 36.5%, propionic acid 5-10
Part, ethylenediamine 10-15 part, alkyl imidazoline quaternary ammonium salt 1-2 part；Water 20-25 part；
Passivating solution consists of (weight): polyimides 10-20 part, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane
4-10 part, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 8-15 part, sodium fluoborate 15-20 part, sulfuric acid 1-
4 parts, dialkyl dithiophosphoric acid oxygen molybdenum 20-25 part, water 25-35 part；
Pump housing outer surface after passivation is coated titanium nitride series ceramic material；Nitrogen is formed by being coated in pump housing outer surface
Changing titanium series ceramic material layer, titanium nitride series ceramic material layer thickness 0.4mm, titanium nitride series ceramic material composition of layer includes (weight
Amount): titanium nitride 30-40 part, titanium boride 20-30 part, tungsten carbide 10-15 part, carborundum 5-10 part, the pump housing after coating is entered
Row heating, be warming up to 850 DEG C, heating rate 250 DEG C/h, be incubated 6 hours, after be cooled to 650 DEG C, rate of temperature fall 100 DEG C/
Hour, be incubated 5 hours, after be again cooled to 350 DEG C, rate of temperature fall 75 DEG C/h, be incubated 9 hours, rear air cooling to room temperature,
Afterwards pump housing inner surface is coated titanium carbide series ceramic material；Carbonization is formed by being coated in pump housing inner surface
Titanium series ceramic material layer, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material composition of layer includes (weight):
Titanium carbide 70-80 part, titanium nitride 15-20 part, chromium carbide 10 parts, carborundum 10-15 part, the pump housing after coating is heated,
Be warming up to 650 DEG C, heating rate 200 DEG C/h, be incubated 2 hours, after be cooled to 450 DEG C, rate of temperature fall 100 DEG C/h, protect
Temperature 6 hours, after be again cooled to 150 DEG C, rate of temperature fall 50 DEG C/h, be incubated 9 hours, rear air cooling, to room temperature, obtains final pump
Body.
Described pump housing inner surface is that blood passes through to touch the part on pump body surface when pump is internal, the pump housing remaining
Part is pump housing outer surface.
Foregoing invention content having the beneficial effects that relative to prior art: 1) composition of titanium alloy is simple；2) to this one-tenth
The titanium alloy divided carries out the surface treatment procedure of pickling and passivation, it is to avoid the problems such as any surface stain occurs, makes acquisition surface
Neatly；3) by the kind inner surface at the pump housing different with speed according to pump housing contact human body cell and outer surface carbon
Change the performances such as titanium series ceramic material and titanium nitride series ceramic material layer, the anti-hemolysis of raising material and antithrombotic.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now describe the present invention's in detail
Detailed description of the invention.
Embodiment 1
A kind of cardiovascular power pump, kinetic pump includes a pump housing, and the pump housing includes: the cast titanium alloy pump housing, pump housing outer surface
Titanium nitride series ceramic material layer and the titanium carbide series ceramic material layer of pump housing inner surface,
It is characterized in that, cast titanium alloy pump housing chemical composition is (weight): Al:13, Fe:9, Si:6, Zn:
4, Mg 1, Ni 0.7, Cu:0.5, Cr:0.2, Y:0.1, Zr:0.07, Mn: 0.05, V:0.06,
B:0.08, surplus is Ti and inevitable impurity；
Cast titanium alloy pump housing preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melts
Refining, cast: smelting temperature: 1810 DEG C, pouring temperature is 1750 DEG C；After the demoulding, the pump housing obtained is heat-treated: first by pump
Body heats, and is warming up to 850 DEG C, heating rate 300 DEG C/h, is incubated 4 hours, after be cooled to 550 DEG C, rate of temperature fall 100
DEG C/h, be incubated 6 hours, after be warming up to 700 DEG C, heating rate 100 DEG C/h, be incubated 2 hours, after be again cooled to 350
DEG C, rate of temperature fall 50 DEG C/h, be incubated 7 hours, after be again cooled to 150 DEG C, rate of temperature fall 40 DEG C/h, be incubated 4 hours,
Rear air cooling to room temperature,
Afterwards pump housing surface is carried out pickling and Passivation Treatment, wherein:
Pickle consists of (weight): take 98% dense H2SO410 parts, the HCL of 36.5% 20 parts, propionic acid 5 parts, ethylenediamine
10 parts, alkyl imidazoline quaternary ammonium salt 1 part；20 parts of water；
Passivating solution consists of (weight): polyimides 20 parts, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 10
Part, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 15 parts, sodium fluoborate 20 parts, 4 parts of sulfuric acid, dialkyl group
Phosphordithiic acid oxygen molybdenum 25 parts, 35 parts of water；
Pump housing outer surface after passivation is coated titanium nitride series ceramic material；Nitrogen is formed by being coated in pump housing outer surface
Changing titanium series ceramic material layer, titanium nitride series ceramic material layer thickness 0.4mm, titanium nitride series ceramic material composition of layer includes (weight
Amount): titanium nitride 30 parts, titanium boride 20 parts, tungsten carbide 10 parts, 5 parts of carborundum, heat the pump housing after coating, be warming up to
850 DEG C, heating rate 250 DEG C/h, be incubated 6 hours, after be cooled to 650 DEG C, rate of temperature fall 100 DEG C/h, insulation is 5 little
Time, after be again cooled to 350 DEG C, rate of temperature fall 75 DEG C/h, be incubated 9 hours, rear air cooling to room temperature,
Afterwards pump housing inner surface is coated titanium carbide series ceramic material；Carbonization is formed by being coated in pump housing inner surface
Titanium series ceramic material layer, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material composition of layer includes (weight):
Titanium carbide 70 parts, titanium nitride 15 parts, chromium carbide 10 parts, 10 parts of carborundum, heats the pump housing after coating, is warming up to 650
DEG C, heating rate 200 DEG C/h, be incubated 2 hours, after be cooled to 450 DEG C, rate of temperature fall 100 DEG C/h, be incubated 6 hours, after
Again it is cooled to 150 DEG C, rate of temperature fall 50 DEG C/h, it is incubated 9 hours, rear air cooling, to room temperature, obtains the final pump housing.
Embodiment 2
A kind of cardiovascular power pump, kinetic pump includes a pump housing, and the pump housing includes: the cast titanium alloy pump housing, pump housing outer surface
Titanium nitride series ceramic material layer and the titanium carbide series ceramic material layer of pump housing inner surface,
It is characterized in that, cast titanium alloy pump housing chemical composition is (weight): Al:14, Fe:10, Si:7,
Zn:5, Mg 2, Ni 0.8, Cu:0.6, Cr:0.3, Y:0.2, Zr:0.08, Mn: 0.06,
V:0.07, B:0.09, surplus is Ti and inevitable impurity；
Cast titanium alloy pump housing preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melts
Refining, cast: smelting temperature: 1820 DEG C, pouring temperature is 1760 DEG C；After the demoulding, the pump housing obtained is heat-treated: first will
The pump housing heats, and is warming up to 850 DEG C, heating rate 300 DEG C/h, is incubated 4 hours, after be cooled to 550 DEG C, rate of temperature fall
100 DEG C/h, be incubated 6 hours, after be warming up to 700 DEG C, heating rate 100 DEG C/h, be incubated 2 hours, after be again cooled to
350 DEG C, rate of temperature fall 50 DEG C/h, be incubated 7 hours, after be again cooled to 150 DEG C, rate of temperature fall 40 DEG C/h, insulation is 4 little
Time, rear air cooling to room temperature,
Afterwards pump housing surface is carried out pickling and Passivation Treatment, wherein:
Pickle consists of (weight): take 98% dense H2SO435 parts, the HCL of 36.5% 30 parts, propionic acid 10 parts, second two
Amine 15 parts, alkyl imidazoline quaternary ammonium salt 2 parts；25 parts of water；
Passivating solution consists of (weight): polyimides 20 parts, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 10
Part, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 15 parts, sodium fluoborate 20 parts, 4 parts of sulfuric acid, dialkyl group
Phosphordithiic acid oxygen molybdenum 25 parts, 35 parts of water；
Pump housing outer surface after passivation is coated titanium nitride series ceramic material；Nitrogen is formed by being coated in pump housing outer surface
Changing titanium series ceramic material layer, titanium nitride series ceramic material layer thickness 0.4mm, titanium nitride series ceramic material composition of layer includes (weight
Amount): titanium nitride 40 parts, titanium boride 30 parts, tungsten carbide 15 parts, 10 parts of carborundum, heat the pump housing after coating, be warming up to
850 DEG C, heating rate 250 DEG C/h, be incubated 6 hours, after be cooled to 650 DEG C, rate of temperature fall 100 DEG C/h, insulation is 5 little
Time, after be again cooled to 350 DEG C, rate of temperature fall 75 DEG C/h, be incubated 9 hours, rear air cooling to room temperature,
Afterwards pump housing inner surface is coated titanium carbide series ceramic material；Carbonization is formed by being coated in pump housing inner surface
Titanium series ceramic material layer, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material composition of layer includes (weight):
Titanium carbide 80 parts, titanium nitride 20 parts, chromium carbide 10 parts, 15 parts of carborundum, heats the pump housing after coating, is warming up to 650
DEG C, heating rate 200 DEG C/h, be incubated 2 hours, after be cooled to 450 DEG C, rate of temperature fall 100 DEG C/h, be incubated 6 hours, after
Again it is cooled to 150 DEG C, rate of temperature fall 50 DEG C/h, it is incubated 9 hours, rear air cooling, to room temperature, obtains the final pump housing.
Embodiment 3
A kind of cardiovascular power pump, kinetic pump includes a pump housing, and the pump housing includes: the cast titanium alloy pump housing, pump housing outer surface
Titanium nitride series ceramic material layer and the titanium carbide series ceramic material layer of pump housing inner surface,
It is characterized in that, cast titanium alloy pump housing chemical composition is (weight): Al:13.5, Fe:9.5, Si:
6.5, Zn:4.5, Mg 1.5, Ni 0.75, Cu:0.55, Cr:0.25, Y:0.15, Zr:0.075, Mn
: 0.055, V:0.065, B:0.085, surplus is Ti and inevitable impurity；
Cast titanium alloy pump housing preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melts
Refining, cast: smelting temperature: 1815 DEG C, pouring temperature is 1755 DEG C；After the demoulding, the pump housing obtained is heat-treated: first by pump
Body heats, and is warming up to 850 DEG C, heating rate 300 DEG C/h, is incubated 4 hours, after be cooled to 550 DEG C, rate of temperature fall 100
DEG C/h, be incubated 6 hours, after be warming up to 700 DEG C, heating rate 100 DEG C/h, be incubated 2 hours, after be again cooled to 350
DEG C, rate of temperature fall 50 DEG C/h, be incubated 7 hours, after be again cooled to 150 DEG C, rate of temperature fall 40 DEG C/h, be incubated 4 hours,
Rear air cooling to room temperature,
Afterwards pump housing surface is carried out pickling and Passivation Treatment, wherein:
Pickle consists of (weight): take 98% dense H2SO420 parts, the HCL of 36.5% 25 parts, propionic acid 7 parts, ethylenediamine
13 parts, alkyl imidazoline quaternary ammonium salt 1.5 parts；23 parts of water；
Passivating solution consists of (weight): polyimides 15 parts, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 7
Part, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 12 parts, sodium fluoborate 17 parts, 3 parts of sulfuric acid, dialkyl group
Phosphordithiic acid oxygen molybdenum 23 parts, 30 parts of water；
Pump housing outer surface after passivation is coated titanium nitride series ceramic material；Nitrogen is formed by being coated in pump housing outer surface
Changing titanium series ceramic material layer, titanium nitride series ceramic material layer thickness 0.4mm, titanium nitride series ceramic material composition of layer includes (weight
Amount): titanium nitride 35 parts, titanium boride 25 parts, tungsten carbide 13 parts, 7 parts of carborundum, heat the pump housing after coating, be warming up to
850 DEG C, heating rate 250 DEG C/h, be incubated 6 hours, after be cooled to 650 DEG C, rate of temperature fall 100 DEG C/h, insulation is 5 little
Time, after be again cooled to 350 DEG C, rate of temperature fall 75 DEG C/h, be incubated 9 hours, rear air cooling to room temperature,
Afterwards pump housing inner surface is coated titanium carbide series ceramic material；Carbonization is formed by being coated in pump housing inner surface
Titanium series ceramic material layer, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material composition of layer includes (weight):
Titanium carbide 75 parts, titanium nitride 17 parts, chromium carbide 10 parts, 13 parts of carborundum, heats the pump housing after coating, is warming up to 650
DEG C, heating rate 200 DEG C/h, be incubated 2 hours, after be cooled to 450 DEG C, rate of temperature fall 100 DEG C/h, be incubated 6 hours, after
Again it is cooled to 150 DEG C, rate of temperature fall 50 DEG C/h, it is incubated 9 hours, rear air cooling, to room temperature, obtains the final pump housing.
Embodiment 4
A kind of cardiovascular power pump, kinetic pump includes a pump housing, and the pump housing includes: the cast titanium alloy pump housing, pump housing outer surface
Titanium nitride series ceramic material layer and the titanium carbide series ceramic material layer of pump housing inner surface,
It is characterized in that, cast titanium alloy pump housing chemical composition is (weight): Al:13.3, Fe:9.2, Si:
6.4, Zn:4.1, Mg 1.4, Ni 0.72, Cu:0.54, Cr:0.24, Y:0.13, Zr:0.072, Mn
: 0.051, V:0.063, B:0.084, surplus is Ti and inevitable impurity；
Cast titanium alloy pump housing preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melts
Refining, cast: smelting temperature: 1812 DEG C, pouring temperature is 1753 DEG C；After the demoulding, the pump housing obtained is heat-treated: first by pump
Body heats, and is warming up to 850 DEG C, heating rate 300 DEG C/h, is incubated 4 hours, after be cooled to 550 DEG C, rate of temperature fall 100
DEG C/h, be incubated 6 hours, after be warming up to 700 DEG C, heating rate 100 DEG C/h, be incubated 2 hours, after be again cooled to 350
DEG C, rate of temperature fall 50 DEG C/h, be incubated 7 hours, after be again cooled to 150 DEG C, rate of temperature fall 40 DEG C/h, be incubated 4 hours,
Rear air cooling to room temperature,
Afterwards pump housing surface is carried out pickling and Passivation Treatment, wherein:
Pickle consists of (weight): take 98% dense H2SO413 parts, the HCL of 36.5% 23 parts, propionic acid 6 parts, ethylenediamine
11 parts, alkyl imidazoline quaternary ammonium salt 1.3 parts；21 parts of water；
Passivating solution consists of (weight): polyimides 12 parts, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 5
Part, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 9 parts, sodium fluoborate 16 parts, 2 parts of sulfuric acid, dialkyl group two
D2EHDTPA oxygen molybdenum 21 parts, 27 parts of water；
Pump housing outer surface after passivation is coated titanium nitride series ceramic material；Nitrogen is formed by being coated in pump housing outer surface
Changing titanium series ceramic material layer, titanium nitride series ceramic material layer thickness 0.4mm, titanium nitride series ceramic material composition of layer includes (weight
Amount): titanium nitride 31 parts, titanium boride 23 parts, tungsten carbide 11 parts, 6 parts of carborundum, heat the pump housing after coating, be warming up to
850 DEG C, heating rate 250 DEG C/h, be incubated 6 hours, after be cooled to 650 DEG C, rate of temperature fall 100 DEG C/h, insulation is 5 little
Time, after be again cooled to 350 DEG C, rate of temperature fall 75 DEG C/h, be incubated 9 hours, rear air cooling to room temperature,
Afterwards pump housing inner surface is coated titanium carbide series ceramic material；Carbonization is formed by being coated in pump housing inner surface
Titanium series ceramic material layer, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material composition of layer includes (weight):
Titanium carbide 71 parts, titanium nitride 16 parts, chromium carbide 10 parts, 11 parts of carborundum, heats the pump housing after coating, is warming up to 650
DEG C, heating rate 200 DEG C/h, be incubated 2 hours, after be cooled to 450 DEG C, rate of temperature fall 100 DEG C/h, be incubated 6 hours, after
Again it is cooled to 150 DEG C, rate of temperature fall 50 DEG C/h, it is incubated 9 hours, rear air cooling, to room temperature, obtains the final pump housing.
Embodiment 5
A kind of cardiovascular power pump, kinetic pump includes a pump housing, and the pump housing includes: the cast titanium alloy pump housing, pump housing outer surface
Titanium nitride series ceramic material layer and the titanium carbide series ceramic material layer of pump housing inner surface,
It is characterized in that, cast titanium alloy pump housing chemical composition is (weight): Al:13.7, Fe:9.6, Si:
6.9, Zn:4.8, Mg 1.6, Ni 0.76, Cu:0.57, Cr:0.29, Y:0.18, Zr:0.077, Mn
: 0.058, V:0.069, B:0.087, surplus is Ti and inevitable impurity；
Cast titanium alloy pump housing preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melts
Refining, cast: smelting temperature: 1816 DEG C, pouring temperature is 1757 DEG C；After the demoulding, the pump housing obtained is heat-treated: first by pump
Body heats, and is warming up to 850 DEG C, heating rate 300 DEG C/h, is incubated 4 hours, after be cooled to 550 DEG C, rate of temperature fall 100
DEG C/h, be incubated 6 hours, after be warming up to 700 DEG C, heating rate 100 DEG C/h, be incubated 2 hours, after be again cooled to 350
DEG C, rate of temperature fall 50 DEG C/h, be incubated 7 hours, after be again cooled to 150 DEG C, rate of temperature fall 40 DEG C/h, be incubated 4 hours,
Rear air cooling to room temperature,
Afterwards pump housing surface is carried out pickling and Passivation Treatment, wherein:
Pickle consists of (weight): take 98% dense H2SO430 parts, the HCL of 36.5% 28 parts, propionic acid 9 parts, ethylenediamine
14 parts, alkyl imidazoline quaternary ammonium salt 1.8 parts；24 parts of water；
Passivating solution consists of (weight): polyimides 18 parts, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 9
Part, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 14 parts, sodium fluoborate 19 parts, 3 parts of sulfuric acid, dialkyl group
Phosphordithiic acid oxygen molybdenum 24 parts, 34 parts of water；
Pump housing outer surface after passivation is coated titanium nitride series ceramic material；Nitrogen is formed by being coated in pump housing outer surface
Changing titanium series ceramic material layer, titanium nitride series ceramic material layer thickness 0.4mm, titanium nitride series ceramic material composition of layer includes (weight
Amount): titanium nitride 38 parts, titanium boride 29 parts, tungsten carbide 14 parts, 9 parts of carborundum, heat the pump housing after coating, be warming up to
850 DEG C, heating rate 250 DEG C/h, be incubated 6 hours, after be cooled to 650 DEG C, rate of temperature fall 100 DEG C/h, insulation is 5 little
Time, after be again cooled to 350 DEG C, rate of temperature fall 75 DEG C/h, be incubated 9 hours, rear air cooling to room temperature,
Afterwards pump housing inner surface is coated titanium carbide series ceramic material；Carbonization is formed by being coated in pump housing inner surface
Titanium series ceramic material layer, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material composition of layer includes (weight):
Titanium carbide 78 parts, titanium nitride 19 parts, chromium carbide 10 parts, 14 parts of carborundum, heats the pump housing after coating, is warming up to
650 DEG C, heating rate 200 DEG C/h, be incubated 2 hours, after be cooled to 450 DEG C, rate of temperature fall 100 DEG C/h, insulation is 6 little
Time, after be again cooled to 150 DEG C, rate of temperature fall 50 DEG C/h, be incubated 9 hours, rear air cooling, to room temperature, obtains the final pump housing.
Claims (2)
1. a cardiovascular power pump, kinetic pump includes a pump housing, the pump housing includes: the cast titanium alloy pump housing, pump housing outer surface
The titanium carbide series ceramic material layer of titanium nitride series ceramic material layer and pump housing inner surface,
It is characterized in that, cast titanium alloy pump housing percentage by weight chemical composition is: Al:13-14, Fe:9-10, Si:6-
7, Zn:4-5, Mg 1-2, Ni 0.7-0.8, Cu:0.5-0.6, Cr:0.2-0.3, Y:0.1-0.2, Zr:
0.07-0.08, Mn: 0.05-0.06, V:0.06-0.07, B:0.08-0.09, surplus is Ti and inevitable
Impurity；
Cast titanium alloy pump housing preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melting, waters
Note: smelting temperature: 1810-1820 DEG C, pouring temperature is 1750-1760 DEG C；After the demoulding, the pump housing obtained is heat-treated: first
First the pump housing is heated, is warming up to 850 DEG C, heating rate 300 DEG C/h, be incubated 4 hours, after be cooled to 550 DEG C, cooling
Speed 100 DEG C/h, is incubated 6 hours, after be warming up to 700 DEG C, heating rate 100 DEG C/h, be incubated 2 hours, after again drop
Temperature to 350 DEG C, rate of temperature fall 50 DEG C/h, be incubated 7 hours, after be again cooled to 150 DEG C, rate of temperature fall 40 DEG C/h, guarantor
Temperature 4 hours, rear air cooling to room temperature,
Afterwards pump housing surface is carried out pickling and Passivation Treatment, wherein:
Pickle weight portion consists of: take 98% dense H2SO410-35 part, HCl 20-30 part of 36.5%, propionic acid 5-10 part,
Ethylenediamine 10-15 part, alkyl imidazoline quaternary ammonium salt 1-2 part；Water 20-25 part；
Passivating solution weight portion consists of: polyimides 10-20 part, 2-(3,4-epoxycyclohexyl) ethyl trimethoxy silane 4-10
Part, N-(2-amino-ethyl)-3-amino propyl methyl dimethoxysilane 8-15 part, sodium fluoborate 15-20 part, sulfuric acid 1-4 part,
Dialkyl dithiophosphoric acid oxygen molybdenum 20-25 part, water 25-35 part；
Pump housing outer surface after passivation is coated titanium nitride series ceramic material；Titanium nitride is formed by being coated in pump housing outer surface
Series ceramic material layer, titanium nitride series ceramic material layer thickness 0.4mm, titanium nitride series ceramic material composition of layer is by following weight portion thing
Matter forms: titanium nitride 30-40 part, titanium boride 20-30 part, tungsten carbide 10-15 part, carborundum 5-10 part, by the pump housing after coating
Heat, be warming up to 850 DEG C, heating rate 250 DEG C/h, be incubated 6 hours, after be cooled to 650 DEG C, rate of temperature fall 100
DEG C/h, be incubated 5 hours, after be again cooled to 350 DEG C, rate of temperature fall 75 DEG C/h, be incubated 9 hours, rear air cooling to room temperature,
Afterwards pump housing inner surface is coated titanium carbide series ceramic material；Titanium carbide system is formed by being coated in pump housing inner surface
Ceramic material layer, titanium carbide series ceramic material layer thickness 0.5mm, titanium carbide series ceramic material composition of layer is by weight portion: titanium carbide
70-80 part, titanium nitride 15-20 part, chromium carbide 10 parts, carborundum 10-15 part forms, and is heated by the pump housing after coating, rises
Temperature to 650 DEG C, heating rate 200 DEG C/h, be incubated 2 hours, after be cooled to 450 DEG C, rate of temperature fall 100 DEG C/h, insulation 6
Hour, after be again cooled to 150 DEG C, rate of temperature fall 50 DEG C/h, be incubated 9 hours, rear air cooling, to room temperature, obtains the final pump housing.
2. a kind of cardiovascular power pump as claimed in claim 1, cast titanium alloy pump housing chemical composition is: Al:13, Fe:
9, Si:6, Zn:4, Mg 1, Ni 0.7, Cu:0.5, Cr:0.2, Y:0.1, Zr:0.07, Mn:
0.05, V:0.06, B:0.08, surplus is Ti and inevitable impurity.
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| CN201510207430.5A CN104831121B (en) | 2015-04-28 | 2015-04-28 | A kind of cardiovascular power pump |
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| CN201510207430.5A CN104831121B (en) | 2015-04-28 | 2015-04-28 | A kind of cardiovascular power pump |
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