CN105486614A - Method for manufacturing check block of insoluble liquid particle detection device and optical sample reservoir - Google Patents
Method for manufacturing check block of insoluble liquid particle detection device and optical sample reservoir Download PDFInfo
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- CN105486614A CN105486614A CN201510995929.7A CN201510995929A CN105486614A CN 105486614 A CN105486614 A CN 105486614A CN 201510995929 A CN201510995929 A CN 201510995929A CN 105486614 A CN105486614 A CN 105486614A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging
Abstract
The invention discloses a method for manufacturing a check block of an insoluble liquid particle detection device and an optical sample reservoir, aiming at solving the technical problem in the prior art that a stainless steel plate sealed in the manner of thread splicing and sealant is difficult to reach the pressure-bearing value for ultrahigh pressure detection is solved. According to the technical scheme, the check block in the optical sample reservoir is integrally welded in a special processing form and is wholly embedded into a connecting block, and then is welded again to form the optical sample reservoir for an insoluble liquid particle detector applied to an optical resisting method. The optical sample reservoir with the check block in such arrangement has the highest loading capacity reaching above 400kg and can fully meet the requirement for ultrahigh pressure detection.
Description
Technical field
The present invention relates to a kind of liquid insoluble particle checkout equipment, more particularly, it relates to a kind of light blockage method that is applied to and measures proof mass in the detection technique of insoluble particle and droplet measurement device and sample cell.
Background technology
Along with science and technology and being showing improvement or progress day by day and high speed development of modern industry, to the degree of purity of the actuating medium applied in many industries or product and accordingly examination and controlling technology propose more and more higher requirement.Wherein, the demand of the industry such as microelectronics, medicine, oil exploitation, high speed machine lubricating oil, hydraulic pressure (pneumatic) transmission is particularly outstanding.In the insoluble particle checkout equipment of liquid, common several detecting instruments have optical particulate calculating instrument, Ku Erte calculating instrument and nucleus of condensation calculating instrument, wherein, the fastest with the detection speed of optical particulate calculating instrument, disturb little, reliable operation degree is high and automaticity is high, thus application is commercially also extensive.
Optical particulate counting technology is divided into light scattering method and light blockage method two kinds, the insoluble particle in liquid is utilized to complete the counting of particle and the calculating of particle diameter for the scattering of incident light and resistance photosensitiveness respectively, wherein apply the optical particulate calculating instrument of light blockage method owing to not needing the problem of the acquisition system considering focusing and scattered light, therefore structure is comparatively simple, and application surface is also wide in light scattering method.Light blockage method is measured in the device of insoluble liquid particles, its kernel component is mounted in the proof mass of instrument internal, proof mass is a block with slit be made up of stainless steel material, when liquid flows to testing instruments inside, under suitable sealing and drainage means, liquid to be detected flows into the slit on proof mass, testing instruments are also provided with laser instrument, beat on slit after laser beam processes after filtering, laser pickoff is for receiving the laser of laser generator transmission, once there be insoluble particle to pass through in slit, laser pickoff to light be weakened once, and by this changing value by obtaining voltage negative pulses after photoelectric conversion, now basis, the number of negative pulse calculates the number of insoluble particle, by the projected area of the amplitude count particles of negative pulse, thus obtain the particle diameter of insoluble particle, thus judge the content of the insoluble particle shape impurity in liquid to be detected and particle size whether up to standard.
In above process, the precision of proof mass directly determines the accuracy of check data, because be counted at its slit through proof mass and detect during the detection of particle.Early stage proof mass exists with the form of sample cell, is that is mounted in another contiguous block by proof mass, utilizes contiguous block to be introduced in the slit on proof mass liquid to be detected, form independent sample cell sealing together.The structure of sample cell the earliest adopts semicircle piece of stainless steel and two pieces of glassy bonds, by in the middle of corrosion resistant plate, a slit is set, laser exposes in slit on glass optical window, and one piece, two blocks of glass is as incident optical window, another block as outgoing optical window, and this structure is as shown in figure accompanying drawing 1.Problems existing is that the width of slit is difficult to accurate control in such a configuration, because in this structure, the width of slit is adjusted by the spacing of two piece of stainless steel, due to the distance between two pieces of piece of stainless steel can be affected on piece of stainless steel during bonding two pieces of optical windows, therefore, the size of slit is very unstable.
Derivative on the basis of the above and what come is exactly structure shown in Fig. 2 of often adopting now, the form of what its structure adopted is exactly proof mass external contiguous block formation sample cell is mounted in testing instruments.Two pieces of seams plate (2) including two pieces of fixed heads (3) adopting 316 stainless steels to make in its proof mass and be folded between two pieces of fixed heads (3), adopt 316L stainless steel to make, the connecting thread hole (31) penetrating the corrosion resistant plate that three pieces compress mutually is utilized to fix the relative position of three layers of corrosion resistant plate, to ensure the reliability of annexation.Due to the slit (5) needing formation insoluble particle to pass through between seam plate (2), therefore, the point of fixity between every block seam plate (2) and upper and lower two fixed heads (3) must not be less than 3.But the form of connecting thread hole (31) only can ensure the relative position of three, the gap of seam crossing can produce the leakage of liquid under inlet hydraulic, this leakage can cause the decline of testing accuracy, thus, in proof mass structure in Fig. 2, be coated with fluid sealant between three layers of corrosion resistant plate, utilize sealant layer to seal the seam between corrosion resistant plate, prevent liquid from affecting accuracy of detection from joint leak.In addition, in order to be installed to by proof mass on insoluble particle checkout equipment, proof mass also be provided with two pieces of installing plates (1), utilize the hole on installing plate (1) to insert the liquid into and draw, form optical sample pond.
Structure in Fig. 2 employs for many years, has the rationality that it exists, but, also there is structural defect:
(1), in Fig. 2 in structure, sealant layer is for preventing leak of liquid necessary, but sealant layer the alignment error bringing 5 to 6 μm to integrally-built installation accuracy is set, this error later stage all can react in testing result.
(2) the insoluble particle checkout equipment continued to use in the past mainly contains two kinds: desk-top and hand-held, and its inlet hydraulic is the highest can not more than 80kg.But, the developing direction of liquid insoluble particle checkout equipment is that UHV (ultra-high voltage) detects, especially the proposition of on-line checkingi demand, insoluble particle under UHV (ultra-high voltage) in detecting liquid becomes main flow, therefore, it is even higher that inlet hydraulic in proof mass can rise to 200 to 300kg, for locating at least six connecting thread holes (31) of three layers of corrosion resistant plate on proof mass in Fig. 2, when bearing the fluid pressure of superelevation, the position be threaded can become the intensity the weakest point of whole proof mass, first structural damage also occurs in this position, thus, proof mass bears the restriction that pressure is mainly subject to connecting thread hole (31).
(3) because needs arrange connecting thread hole (31), thus the size of proof mass itself can not be too small, otherwise be difficult to the installation space needs meeting connecting thread hole (31), but the development trend of inspection machine is miniaturization at present, thus, in Fig. 2, physical dimension also can restrict it and further develops.
Above-mentioned three point defects, trace it to its cause, so defect all points to the irrationality of processing mode, that is, only have and change processing mode in the past, thoroughly could solve above-mentioned three defects.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide a kind of light blockage method of applying to the manufacture method of the proof mass that the insoluble particle in liquid detects and the structure of proof mass that obtained by the method, make the structure obtained can meet requirement liquid being carried out under at least 400kg pressure to insoluble particle detection.
For achieving the above object, the invention provides following technical scheme: a kind of manufacture method for the proof mass of insoluble particle detector in liquid, for a manufacture method for the proof mass of insoluble particle detector in liquid, it is characterized in that: comprise the steps:
Two pieces of seam board placings on an end face of the fixed head with optical flat, are adjusted the size of the slit formed between two blocks of seam plates by step 1.;
The fixed head of another block with optical flat is pressed on seam plate by step 2., and ensures that the optical flat on two fixed heads contacts with seam plate;
Upper and lower two pieces of fixed heads and every block seam plate position by being no less than three screws by step 3., and by two pieces of fixed heads and the welding of middle two blocks seam plates, seam crossing are sealed fixing;
Step 4. will be screwed with the portion of material excision of screw;
Edge after excision in step 4 welds and seals by step 5., forms overall proof mass.
By adopting technique scheme, first two pieces of fixed heads and the seam plate be clipped in wherein are threaded connection and carry out the fixing of position, when preventing subsequent operation, relative position relation changes, in order to improve the bulk strength of proof mass, the material of the part that is threaded must be removed, break during to prevent the position of threaded hole to be in and to bear fluid pressure, therefore, need this part material removal, therefore, the relatively-stationary three ply board material in position is welded, ensure the position relationship in excision process, carry out the excision of material again, now, the weld seam that the position relationship of three ply board material is soldered replaced, position relationship in excision process can not change, again the edge after excision is welded, form a monoblock type proof mass, such mode of operation farthest can improve the bulk strength of proof mass.In addition, because the annexation in this programme between several pieces is finally all fixed by weld seam, the sealing effectiveness of weld seam directly can replace glue-line, thus the proof mass in the present invention is inner without any need for fluid sealant, like this, carried out the form of hydraulic seal compared to prior art by the sealant layer on composition surface, its installation accuracy can be promoted to 2 to 3 μm, under this installation accuracy, the testing accuracy of proof mass is doubled compared to prior art.
The present invention is set to further: the proof mass formed in step 5 also includes following steps before insoluble particle detector being mounted in liquid:
Step 1. processes contiguous block according to the thickness of the installation site size of insoluble particle detector and proof mass, and on contiguous block, be provided with the caulking groove closed with proof mass matching size, when described proof mass is mounted in caulking groove, the end face of proof mass flushes with the upper and lower end face of contiguous block;
Described proof mass is embedded in caulking groove by step 2., and the position seam welding that the surrounding of proof mass contacts with caulking groove (63) is fixed, and ensures all seaming position place sealings.
By adopting technique scheme, need proof mass to carry web joint formation sample cell in current liquid insoluble particle detector to install, therefore, be matched with the structure of current this requirement comprehensive test block, the surrounding of the caulking groove of processing is fixed proof mass, and seal with weld seam, the installation being conducive to proof mass and testing instruments is fixed.
The present invention is set to further: the processing of described contiguous block comprises the steps:
Step 1. processes U-shaped piece of thickness and described proof mass consistency of thickness, when described proof mass embeds in U-shaped piece, and the end face of the end face of proof mass and the opening part of U-shaped piece;
The cover plate of step 2. working width and U-shaped block-shaped adaptation, when cover plate is fixedly connected with U-shaped piece, cover plate flushes with U-shaped piece of upper and lower end face and surrounds caulking groove in central authorities.
Described proof mass embeds in U-shaped piece by step 3., and institute's seam is carried out welding and sealing;
Institute's seam by the edge butt joint of cover plate and U-shaped piece, and carries out welding and sealing by step 4..
By adopting such scheme, by split type U-shaped piece and cover plate form processing contiguous block, not only can avoid the problem of the processing difficulties of caulking groove during monoblock type processing contiguous block, and, adopt the mounting means also having proof mass simultaneously changed during such form processing contiguous block, in this programme, first proof mass embeds in U-shaped piece, form six weld seams between the two, four weld seams of upper and lower end face and two of vertical seam place respectively, by the sealing of these six weld seams, fluid passage between proof mass and U-shaped piece only lefts in slit one, when cover plate covers when the opening part of U-shaped piece, the seam of surrounding is welded, like this, in whole optical sample pond, liquid only has slit path, all the other all welded seaming close, the leakage of liquid can be prevented to greatest extent, ensure testing accuracy.
The present invention also provides the optical sample obtained described in a kind of manufacturing method according to the invention pond: comprise proof mass and contiguous block, described contiguous block is provided with the caulking groove with proof mass shape adaptation, when proof mass is embedded in caulking groove, the upper and lower end face of proof mass flushes with the upper and lower end face of contiguous block and mutually seals fixing, described contiguous block is provided with the flowing hole inserting the liquid into or draw proof mass, described flowing hole is communicated with slit.
By adopting technique scheme, first fixed head and seam plate are fixed, and with an overall form setting-in in caulking groove, then the structural strength of caulking groove itself reliably can be fixed proof mass, compared to the form be threaded connection in prior art, increase significantly in the bearing of pressure.
The present invention is set to further: described contiguous block offers for fixing described optical sample pond to the mounting hole on inspection machine.
By adopting technique scheme, because optical sample pond will be mounted to the detection just carrying out insoluble particle in particle online detection instrument, therefore, optical sample pond need correspondence to arrange mounting hole, because one-piece construction is different from of the prior art, the mounting hole in the optical sample pond in the present invention is arranged on contiguous block, offers with what prevent mounting hole the bearing capacity affecting proof mass.
The present invention is set to further: described contiguous block offers the cable-through hole for the connecting line by laser detector.
By adopting technique scheme, due to the present invention towards be the equipment that light blockage method measures insoluble particle in liquid, therefore, in the design in optical sample pond, need the reserved mouth connecting the circuit of Laser emission and receiving trap, be different from prior art, cable-through hole is arranged on contiguous block by the present invention, prevents perforate to the weakening of proof mass bearing capacity further.
The present invention is set to further: the two ends described fixed head corresponding to slit are provided with overcurrent otch, and the edge of the sectional dimension self-retaining plate of described overcurrent otch reduces gradually to slit end.
By adopting technique scheme, because the size of slit sets according to testing accuracy, therefore, the particle size values that the maximum permission that the size of slit can not exceed expection is passed through, therefore, when liquid flows through slit, the position of slit can form the structure that is similar to slender holes, liquid resistance is very large, when the viscosity of the liquid checked is higher, be easy to be formed in the position of slit build the pressure, structure can be made like this to bear larger pressure, even destroy structure, at the two ends of slit, overcurrent otch is set, drainage is carried out to inflow and the liquid flowed out in slit, the liquid liquid reduced in the position of slit hinders, alleviate the fluid pressure that this part structure is born.
Accompanying drawing explanation
Fig. 1 is background technology accompanying drawing 1;
Fig. 2 is background technology accompanying drawing 2;
Fig. 3 is the erection sequence figure of three layers of corrosion resistant plate;
Fig. 4 is the schematic diagram being welded in cutting in inspection during manufacture block process;
The structural drawing of Fig. 5 proof mass;
Fig. 6 is the explosive view of proof mass;
Fig. 7 is the structural representation of contiguous block;
Fig. 8 is the structural drawing in the optical sample pond that the method in embodiment 1 obtains;
Fig. 9 is the structural representation of U-shaped piece;
Figure 10 is the structural representation of cover plate;
Figure 11 adopts U-shaped piece of welding, the installation graph of a relation becoming contiguous block with cover plate combination;
Figure 12 is the detonation configuration schematic diagram in optical sample pond.
Accompanying drawing marks: 1, installing plate; 2, plate is stitched; 3, fixed head; 4, optical flat; 5, slit; 6, contiguous block; 7, weld seam; 8, line of cut; 21, bevelled edge; 31, threaded hole; 32, overcurrent otch; 33, groove; 61, mounting hole; 62, flowing hole; 63, caulking groove; 64, cable-through hole; 65, U-shaped piece; 66, cover plate.
Embodiment
With reference to Fig. 3 to Figure 12, the embodiment of the present invention is described further.
For a manufacture method for the proof mass of insoluble particle detector in liquid, include following steps:
Step 1. first conventionally processes fixed head 3, seam plate 2 and optical flat 4, and is mounted on fixed head 3 by optical flat 4;
Step 2. is according to the order shown in Fig. 3, each block of two blocks of seam plates 2 is all fixed between a pair fixed head 3 by being no less than three threaded holes 31, should be noted that two problems herein, first, the position of threaded hole 31 should ensure under the prerequisite be connected and fixed as far as possible near outer peripheral position, secondly, the suitable slit 5 of size should be formed according to the accuracy of detection of detector between two blocks of seam plates 2;
Step 3. is after completing steps 2, three pieces of corrosion resistant plates are welded and fixed along its longer pair of parallel limit, replace with the intensity of weld seam and be threaded, form the weld seam 7 shown in Fig. 4, and along the line of cut 8 shown in Fig. 4, the part being threaded hole 31 on three pieces of corrosion resistant plates is removed;
Step 4. mends twice weld seam in the edge of former line of cut 8, makes three of remainder pieces of corrosion resistant plate surroundings all be fixed by weld seam and seal, forms proof mass as shown in Figure 5.
The structure of the proof mass completed by above-mentioned steps is as shown in the explosive view of Fig. 6, it comprises seam plate 2, fixed block 3, be fixed on the optical flat 4 on fixed block 3 and be arranged on the overcurrent otch 32 fixed block corresponding to slit 5 two ends, this proof mass compared with prior art, on the basis of functional part possessing complete proof mass, due to special manufacture method, its overall dimensions is much smaller than former proof mass, and the overall structure existence weakening its bearing capacity without any threaded hole and other of proof mass, therefore, through bulge test, the bearing capacity of the proof mass that the method in the present invention manufactures is at 400 more than ㎏, meet the requirement of UHV (ultra-high voltage) inspection machine completely, thus, can by the structure of the existing testing instruments of improvement of cooperation, proof mass is directly mounted in liquid insoluble particle detecting instrument, now corresponding, the installed position corresponding to proof mass in insoluble particle detecting instrument is provided with the syndeton wanting with proof mass to seal, to ensure that the liquid to be tested flowed in insoluble particle detecting instrument flows in the slit 5 on proof mass completely, above-mentioned the miniaturization being conducive to detecting instrument is like this set.
And, because proof mass surrounding all exists weld seam 7, the effect that weld seam 7 plays itself is not only fix three layers of corrosion resistant plate, and simultaneously can by joint seal, thus, proof mass structure in the present invention does not need fluid sealant, and its trueness error of installing can control between 2-3 μm, is more than doubled than the proof mass structure with fluid sealant.
It is pointed out that the job operation of weld seam 7 does not limit herein, can be any method being suitable for the welding of corrosion resistant plate, is preferably laser bonding.
Due in prior art, when proof mass is applied on testing instruments, the block 6 that also needs to be connected forms optical sample pond, so that be mounted in existing equipment, therefore, gives two kinds of structures of contiguous block 6 in the present invention.
The embodiment 1 of contiguous block 6
Process with 316 piece of stainless steel the piece of stainless steel that a physical dimension is suitable for liquid insoluble particle detecting instrument, and process a caulking groove 63 in the central authorities of this piece of stainless steel according to the physical dimension of proof mass, its structure as shown in Figure 7.By in proof mass setting-in to caulking groove 63 and by whole for the seam crossing at the two ends of contiguous block 6 welded seal, the optical sample pond like this in formation the present embodiment, its structure as shown in Figure 8.
The embodiment 2 of contiguous block 6
According to the split type processing contiguous block 6 of form of U-shaped piece 65 shown in Fig. 9 and Figure 10 and cover plate 66, wherein, the U-type groove of U-shaped piece of 65 inside is used for setting-in proof mass.When adopting the split type contiguous block 6 in the present embodiment, the process of setting-in proof mass includes:
Proof mass is mounted on U-shaped piece 65 by step 1., three seams is all welded;
Cover plate 66 covers on U-shaped piece 62 by step 2., and the surrounding of the seam along U-shaped piece 65 and cover plate 66 is welded.
The structure in the optical sample pond formed in embodiment 2 as shown in figure 11, its sealing is better than embodiment 1, its reason is, the vertical weld seam of twice 7 has been lacked relative to embodiment 2 when contiguous block 6 in embodiment 1 welds with proof mass, and this twice weld seam is when manufacturing accuracy is not enough, the leakage of liquid can be caused, affect testing accuracy, and due to the twice weld seam 7 of the inside of increase in embodiment 2, make liquid after entering optical sample pond 7, only there are slit 5 one fluid paths inside, and its good airproof performance, thus testing accuracy is high.
The structure in the optical sample pond that above-mentioned manufacture method is formed as shown in figure 12, include two pieces of fixed heads 3 and be located in two blocks of seam plates 2 between two pieces of fixed heads 3, wherein, the end face that fixed head 3 abuts with seam plate 2 is embedded with optical flat 4, passing with the number and the particle diameter that detect insoluble particle for laser beam.According to the maximum particle diameter value of insoluble particle impurity in liquid to be detected, set the size of the slit 5 between two blocks of seam plates 2, can be also detected by slit 5 smoothly to make all impurity particles.Be different from the form that six pieces of corrosion resistant plates of the prior art are threaded, upper and lower two pieces of fixed heads 3 and two pieces stitched the proof mass that plate 2 is made of one formula herein.
Fixed block 3 is provided with the groove 33 for installing fixed optics glass plate 4 on the end face of seam plate 2, adding man-hour, first according to the shape of groove 33, optical flat 4 is cut into the shape with its adaptation, when setting-in optical flat 4, first on the edge of groove 33, appropriate glue is smeared, to be fixed in groove 33 by optical flat 4, keep the relative position relation of itself and fixed head 3.Ensure optical flat 4 and fixed head 3 flatness integrally, ensure that fixed head 3 fits tightly with seam plate 2 with this.It is to be noted, position corresponding with the two ends of slit 5 on fixed head 3 is provided with overcurrent otch 32, the benefit arranging overcurrent otch 32 is: because the size of slit 5 is general less, when the liquid with certain viscosity flows through slit 5, liquid resistance in slit 5 is similar to slender holes structure, therefore larger liquid resistance can be produced in it, the resistance of this liquid finally can cause in slit 5 not to be had liquid to flow through or produce building the pressure of inflow point under larger pressure, no matter any, all be unfavorable for the intensity of structure and the use in whole optical sample pond, the aperture of the overcurrent otch 32 offered is gradual changes, aperture on the end face of fixed block 3 is maximum, the aperture of the corresponding position, end of slit 5 is minimum, by the aperture of this gradual change, by liquid drain to the inflow point of slit 5, make it by slit 5, to detect particle diameter and to count numbers of particles.In using, overcurrent otch 32 on two pieces of fixed heads 3 of mounted on top docks the duct forming liquid and introduce, and stitch on plate 2 and be provided with bevelled edge 21, the end that two pieces, left and right bevelled edge 21 is docked at west wind 5 forms a leg-of-mutton liquid and introduces district, and this region corresponds to overcurrent otch 32 and arranges.Proof mass integral installation is in caulking groove 63 and be welded to each other fixing, forms optical sample pond.In order to insert the liquid into proof mass, contiguous block 6 is provided with a flowing hole 62, its setting position should be relative with slit 5, that is: flowing hole 62 and overcurrent otch 32 are coaxially arranged.The large end face of contiguous block 6 is provided with mounting hole 61 and cable-through hole 64, wherein, mounting hole 61 for overall optical sample pond is mounted to insoluble particle checkout equipment, the electric wire between the laser generator of cable-through hole 64 on connection device and receiver.It should be pointed out that the laser equipment being matched with different model herein, cable-through hole 64 can arrange two.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1., for a manufacture method for the proof mass of insoluble particle detector in liquid, it is characterized in that: comprise the steps:
Two pieces of seams plate (2) are put on an end face of the fixed head (3) with optical flat (4) by step 1., adjust the size of the slit (5) formed between two pieces of seams plate (2);
The fixed head (3) of another block with optical flat (4) is pressed on seam plate (2) by step 2., and ensures that the optical flat (4) on two fixed heads (3) contacts with seam plate (2);
Upper and lower two pieces of fixed heads (3) and every block seam plate (2) position by being no less than three screws by step 3., and by two pieces of fixed heads (3) and middle two pieces seam plate (2) welding, seam crossing are sealed fixing;
Step 4. will be screwed with the portion of material excision of screw;
Edge after excision in step 4 welds and seals by step 5., forms overall proof mass.
2. the manufacture method for the proof mass of insoluble particle detector in liquid according to claim 1, is characterized in that: the proof mass formed in step 5 also includes following steps before insoluble particle detector being mounted in liquid:
Step 1. processes contiguous block (6) according to the thickness of the installation site size of insoluble particle detector and proof mass, and on contiguous block (6), be provided with the caulking groove (63) closed with proof mass matching size, when described proof mass is mounted in caulking groove (63), the end face of proof mass flushes with the upper and lower end face of contiguous block (6);
Described proof mass is embedded in caulking groove (63) by step 2., and the position seam welding that the surrounding of proof mass contacts with caulking groove (63) is fixed, and ensures all seaming position place sealings.
3. the manufacture method for the proof mass of insoluble particle detector in liquid according to claim 2, is characterized in that: the processing of described contiguous block (6) comprises the steps:
Step 1. is processed U-shaped piece (65) of thickness and described proof mass consistency of thickness, when described proof mass embeds in U-shaped piece, and the end face of the end face of proof mass and the opening part of U-shaped piece (65);
The cover plate (66) of step 2. working width and U-shaped piece of (65) shape adaptation, when cover plate (66) is fixedly connected with U-shaped piece (65), cover plate (66) flushes with U-shaped piece of (65) upper and lower end face and surrounds caulking groove (63) in central authorities;
Described proof mass embeds in U-shaped piece (65) by step 3., and institute's seam is carried out welding and sealing;
Institute's seam by the edge butt joint of cover plate (66) with U-shaped piece (65), and carries out welding and sealing by step 4..
4. the optical sample pond of an application manufacture method making as described in claim 1, it is characterized in that: comprise proof mass and contiguous block (6), described contiguous block (6) is provided with and the caulking groove of proof mass shape adaptation (63), when proof mass is embedded in caulking groove (63), the upper and lower end face of proof mass flushes with the upper and lower end face of contiguous block (6) and mutually seals fixing, described contiguous block (6) is provided with the flowing hole (62) inserting the liquid into or draw proof mass, described flowing hole (62) is communicated with slit (5).
5. optical sample pond according to claim 4, is characterized in that: described contiguous block (6) offers for fixing described optical sample pond to the mounting hole (61) on inspection machine.
6. the optical sample pond according to claim 4 or 5, is characterized in that: described contiguous block (6) offers the cable-through hole (64) for the connecting line by laser detector.
7. the optical sample pond of the insoluble liquit particle detect instrument for light blockage method according to claim 4, is characterized in that: described fixed head (6) is provided with the groove (32) for being embedded optical flat (4).
8. the optical sample pond of the insoluble liquit particle detect instrument for light blockage method according to claim 4, it is characterized in that: the upper two ends corresponding to slit (5) of described fixed head (3) are provided with overcurrent otch (31), and the edge of the sectional dimension self-retaining plate (3) of described overcurrent otch (31) reduces gradually to slit (5) end.
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CN113418835A (en) * | 2021-06-10 | 2021-09-21 | 韩焓 | Flow cell for insoluble particle detector and manufacturing process thereof |
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