CN1112051A

CN1112051A - Capsule shaping process

Info

Publication number: CN1112051A
Application number: CN 94105148
Authority: CN
Inventors: 贾立成; 贾宝瑜; 刘振忠
Original assignee: LIAOYUAN POWER PLANT
Current assignee: LIAOYUAN POWER PLANT
Priority date: 1994-05-18
Filing date: 1994-05-18
Publication date: 1995-11-22

Abstract

The one-pass vulcanization shaping technology for rubber bag used in water treating apparatus includes sticking raw rubber plates onto upper and lower internal wooden moulds, releasing the internal moulds, lap-joining, charging steam into sandwich of double-layer automatically vulcanizing external mould to substitute air pressure for internal wooden mould. Obtained rubber bag has the advantages of uniform wall thickness, no lap-joined trace, high density and tension strength and long service life increased by 4 times.

Description

Capsule shaping process

The present invention relates to an a kind of sulfidization molding new technology that is used for the capsule of water treatment facilities, belong to the rubber processing forming technique.

Capsule is the critical piece in the water treatment facilities, require the even good springiness of wall thickness, hypertonic performance strong, but existing capsule can only adopt wooden internal mold to divide two sections sulfidization moldings, again with the bonding integral body that becomes of cold glue, otherwise closing up because of the capsule two ends can't the demoulding, make that capsule abutting edge wall unevenness is spared, hardened, the hypertonic poor-performing, be not durable, manufacturing process complexity simultaneously.

The present invention is directed to the problems referred to above, provide a kind of employing double-deck two to open in the autovulcanization external mold interlayer and fill steam, replace the capsule one-shot forming new technology of wooden internal mold with air pressure.

Task of the present invention is finished as follows:

1. moulding process a. peace sticks on the rubber plate on upper and lower two sections wooden internal molds, and will prepare bond end and cut out the inclined-plane according to traditional method; B. withdraw from internal mold, two sections are overlapped at overlap joint place, inclined-plane, at first with a detachable support inner ring that connects and composes by three sections circular arcs, bolt and nuts, the overlap joint inclined-plane of half capsule is gone in support, smoothens adhesive paste, puts second half capsule, and the reality that strikes with a stick, hand is stretched into the capsule inner chamber by the end, and the rotation nut unloads to tear open and supports inner ring and be three sections and taken out by the capsule end;

2. sulfuration process a. smears silicone oil on double-deck two that drive the autovulcanization external mold and capsule contact-making surfaces, to be silicone oil use after 1-2 days by mixing at 1: 10 to place with gasoline this silicone oil, capsule is put into double-deck two drive following watt of autovulcanization external mold, and make that the two ends ring flange is parallel to fall into following watt of corresponding component, buckle watt, behind the centering, on upper and lower Wa Bianer, penetrate screw tightening, two ends also use screw fastening with the sub-fixed head of belt carcass with upper and lower watt of flange web ear, wherein an end fuse is hollow, as air-filled pore; B. start the air pump inflation and check that its pressure is 3kg/cm ², termination of pumping checks that each parts has or not leakage, treats can carry out next procedure after 10 minutes; C. open in the autovulcanization external mold interlayer to double-deck two and slowly send vapour, steam pressure is raised to 1kg/cm ²The time, check that comprehensively tight again end screw kept 45-50 minute when continuing to be warming up to 140-150 ℃, during this period, empty steam pressure can reach 4.5-4.8kg/cm in the capsule ²; D. steam off valve, breakdown Inflation door, discharged steam and air are waited not have when pressure and can be unloaded each parts screw by pine, take out finished capsule product then.

The present invention is because employing replaces wooden internal mold with air pressure, filling steam in the external mold interlayer heats, realize the technology of overlap joint after cure earlier, make that the capsule wall thickness is even, do not have cold bonding lap-joint, air themperature raises with vapor (steam) temperature in the external mold in the capsule, to capsule material density is increased, experimental result shows that hot strength and elongation at break all surpass more than a times of national technical stipulation standard, improves 4 times service life, because of its good springiness can improve the water treatment rate again.

Below in conjunction with accompanying drawing the present invention is described in further details

Fig. 1 is bladder curing moulding figure

Fig. 2 is for supporting the inner ring structure chart

, the rubber plate is sticked on upper and lower two sections wooden internal molds, and will prepare bond end and cut out the inclined-plane according to traditional method with reference to accompanying drawing 1.2,1. moulding process: a. peace; B. withdraw from internal mold, two sections are overlapped at overlap joint place, inclined-plane, at first with a detachable support inner ring that connects and composes by three sections circular arcs [1], screw rod [2], nut [3], the overlap joint inclined-plane of half capsule is gone in support, smoothens adhesive paste, puts second half capsule, and the reality that strikes with a stick, hand is stretched into the capsule inner chamber by the end, and rotation nut [3] unloads to tear open and supports inner ring and be three sections and taken out by the capsule end;

2. sulfuration process: a. smears silicone oil on double-deck two that open the autovulcanization mould and capsule contact-making surfaces, to be silicone oil use after 1-2 days by mixing at 1: 10 to place with gasoline this silicone oil, capsule [4] is put into double-deck two drive following watt of autovulcanization external mold [5], and make that the two ends ring flange is parallel to fall into following watt of [5] corresponding component, buckle watt [6], behind the centering, on upper and lower Wa Bianer [7], penetrate screw tightening, two ends also use screw fastening with the sub-fixed head of belt carcass [8] with upper and lower watt of flange web ear, wherein an end fuse is hollow, as the capsule air-filled pore; B. start the air pump inflation and check that its pressure is 3kg/cm ², termination of pumping checks that each position has or not leakage, treats can carry out next procedure after 10 minutes; C. open in the upper and lower watt of interlayer of autovulcanization external mold [9] to double-deck two and slowly send vapour, steam pressure is raised to 1kg/cm ²The time, check that comprehensively tight again end screw kept 45 minutes when continuing to be warming up to 145 ℃, during this, the pressure of air [10] can reach 4.5-4.8kg/cm in the capsule ²; D. steam off valve, breakdown Inflation door, discharged steam and air are waited not have when pressure and can be unloaded each position screw by pine, take out finished capsule product then.

Claims

1, a kind of capsule shaping process: it is at first pacified according to traditional method, the rubber plate is sticked on, on following two sections wooden internal molds, and will prepare bond end and cut out the inclined-plane, it is characterized in that: after withdrawing from internal mold, two sections are overlapped at overlap joint place, inclined-plane, at first with one by three sections circular arcs [1], screw rod [2], the detachable support inner ring that nut [3] connects and composes, the overlap joint inclined-plane of half capsule is gone in support, smoothen adhesive paste, put second half capsule, and the reality that strikes with a stick, hand is stretched into the capsule inner chamber by the end, rotation nut [3] unloads to tear open and supports inner ring and be three sections and taken out by the capsule end; Sulfuration process: a. smears silicone oil on double-deck two that open the autovulcanization mould and capsule contact-making surfaces, to be silicone oil use after 1-2 days by mixing at 1: 10 to place with gasoline this silicone oil, capsule [4] is put into double-deck two drive following watt of autovulcanization external mold [5], and make that the two ends ring flange is parallel to fall into following watt of [5] corresponding site, buckle watt [6], behind the centering, on upper and lower Wa Bianer [7], penetrate screw tightening, two ends also use screw fastening with the sub-fixed head of belt carcass [8] with upper and lower watt of flange web ear, wherein an end fuse is hollow, as the capsule air-filled pore; B. start the air pump inflation and check that its pressure is 3kg/cm ², termination of pumping checks that each position has or not leakage, treats can carry out next procedure after 10 minutes; C. open in the upper and lower watt of interlayer of autovulcanization external mold [9] to double-deck two and slowly send vapour, steam pressure is raised to 1kg/cm ²The time, check that comprehensively tight again end screw kept 45 minutes when continuing to be warming up to 145 ℃, d. steam off valve, breakdown Inflation door, discharged steam and air are waited not have when pressure and can be unloaded each position screw by pine, take out finished capsule product then.