Rubber Hose Production Process 5

Raw rubber treatment (plastic refining) - formulate the formula according to the needs of use - mix on the rubber mixer - park (about 24h) - re-refining - make semi-finished products - vulcanization - trimming - inspection --- finished products.

The characteristics of rubber pipe include physiological inertness, ultraviolet resistance, ozone resistance, high and low temperature resistance (-80 to 300 degrees), high transparency, strong resilience, compression resistance, permanent non-deformation, oil resistance, stamping resistance, acid and alkali resistance, wear resistance, flame retardant, voltage resistance, electrical conductivity and other properties.

In fact, you can ask what the process of warehouse management is, generally each company's products are different, even if they are the same, each company's production plan will definitely not be the same. So, you go to look for a job, and the supervisor must ask you"Have you ever done it, and what is the process of warehouse management".The process is generally the same for a type of work.

The following is a summary of my search, you can refer to:

Warehouse administrator workflow.

1. Requisition 1) For the requisition of finalized materials and planned materials, the warehouse management department shall submit a requisition to the procurement officer according to the reserve of inventory materials;

2) For the requisition of non-stereotyped and unplanned materials, the use of the department according to the needs of the purchase of the name, specification, model, quantity, and description of the use of the use, fill in the requisition and signed by the person in charge of the use of the department, reported to the warehouse management department by the warehouse keeper according to the inventory situation to put forward opinions to the purchasing department;

2. Acceptance 1) The warehouse keeper shall inspect the goods according to the procurement plan;

2) For the acceptance of printed matter, the warehouse management department shall carry out the sample according to the model provided by the use department;

3) If there is any error in the goods, notify the financial supervisor and purchasing officer in time to withhold the payment, and actively contact the printer to make corrections;

4) the acceptance of all materials, all printed warehousing or direct dial orders, triplicate, the first joint to the Ministry of Finance, the second joint warehouse retention, the third joint delivery person retention, (such as arrears, this copy by the delivery person retained, with this copy to the financial settlement, if the purchase of cash payment, then this joint delivery to the receiving department for future reference).

5) For the direct pull materials, after the warehouse keeper does the first-level acceptance, notify the use department to do the second-level acceptance, then the department head directly signs on the direct pull sheet. Acceptance of warehousing materials, by the warehouse keeper according to the supply invoice and the content indicated on the requisition carefully acceptance and warehousing procedures, if found that the purchased materials do not meet the requirements of the regulations, should refuse to receive, and timely notify the procurement department for return, exchange procedures;

3. Custody 1) The warehouse management department is responsible for the custody of all materials in the warehouse, and the materials are stacked neatly, beautifully, and placed according to the category, and the purchase date is indicated, and the passage, wall distance, lamp distance, and material registration card are hung according to the regulations;

2) Master the quality, quantity, hygiene, and shelf life of goods, and implement safety measures and health measures such as anti-theft, insect-proof, anti-rat bite, and anti-deterioration to ensure that the inventory materials are intact;

4. Inventory 1) The warehouse must conduct regular or irregular inventory of inventory, determine the actual inventory of various inventories, and check with the balance recorded in the computer, find out the number and reasons for inventory profit and loss, print the inventory table at the end of each month, and report to the financial review and verification;

2) The management realizes computerized management, and all the warehousing, direct pulling, receiving, and inventory statistics of all commodities are directly completed through the computer system.

The present invention provides a production process for rubber bends, relates to the technical field of rubber pipe production. Wherein, the production process of this rubber elbow comprises the following steps: first, a strip-shaped metal core is provided, and the metal core is bent into the desired shape; secondly, provide an auxiliary tube, and put the auxiliary tube in the metal core according to the bending shape of the metal core; Thirdly, the rubber pipe is placed in the auxiliary pipe according to the bending shape of the auxiliary pipe; Fourth, the rubber pipe sleeved in the auxiliary pipe is vulcanized, demoulded, and cooled to finally obtain the required rubber elbow.

The present invention relates to the technical field of rubber pipe production, specifically, relates to a rubber bending pipe production process.

Background technology: Rubber pipes are widely used in various environments, such as transporting water, oil, gas, etc. In the actual application process, the rubber pipe needs to be bent into the required shape according to the specific use environment.

In the prior art, the bending process of the rubber pipe, the general mold is used to shape, and then after vulcanization, demoulding, and cooling, the required elbow is finally obtained.

However, in the prior art, the rubber pipe is produced by the final mode, and it is not only expensive because of the mold, but also it is extremely difficult to adjust the bending angle of the rubber pipe in the production process. At the same time, when the bending angle required for the rubber pipe is too large, the production process of the prior art cannot be produced, and in view of this, the inventor hereby submits the present application after studying the prior art.

Technical Implementation Elements:

The invention provides a rubber bending pipe production process, aiming at improving the rubber pipe bending process of the prior art, not only is the cost high, but also can not produce the problem that the bending angle is too large.

In order to solve the above-mentioned technical problem, the present invention provides a production process of rubber bend pipe, comprises the following steps:

providing a strip-shaped metal core and bending the metal core into the desired shape;

provide an auxiliary pipe, and the auxiliary pipe is sleeved in the metal core according to the bending shape of the metal core;

the rubber pipe is placed in the auxiliary pipe according to the bending shape of the auxiliary pipe;

The rubber pipe sleeved in the auxiliary pipe is vulcanized, demoulded, and cooled.

As a further optimization, the auxiliary pipe is a rubber pipe that has been vulcanized and cooled.

As a further optimization, the metal core is an iron core, and the rubber pipe is a rubber pipe that has been cooled but not vulcanized.

As further optimization, the production process further comprises the following steps: after the auxiliary pipe sleeve is placed on the metal core, the auxiliary pipe is limited to restrict its movement relative to the metal core.

As a further optimization, the production process further comprises the following steps: the surface of described metal core and the inner wall of described auxiliary pipe are coated with silicone oil.

As further optimization, the production process further comprises the following step: the surface of described auxiliary pipe and or the inner wall of described rubber pipe are coated with silicone oil.

As a further optimization, the auxiliary pipe is limited through a pair of fixing components, the fixing assembly comprises a limiting part and an elastic ring, the limiting part is threaded to one end of the metal core, and the elastic ring is clamped between the end of the auxiliary pipe and the limiting piece.

Rubber hose production process flow chart 1Soft core method.

Raw rubber plastic refining.

Compounding agent, ingredients, mixing, hot mixing.

Inner glue, middle glue, outer glue.

Soft core filtration.

Apply a release agent and add sulfur.

Hot refining calendering.

Extrusion Parking.

Semi-vulcanized, beaten, braided, wound, lagged.

Steel wire strands, pre-formed water-wrapped fabric.

Packaging, warehousing, inspection, pressure test, vulcanization.

Soft core, water pressure decoring, hydrolysis cloth.

Finishing Water cloth finishing.

Note: The key processes are extrusion, weaving (winding), and vulcanization is a special process. Stands for soft core method.

High-pressure hoses are divided into high-pressure steel wire braided hoses and high-pressure steel wire winding hoses according to the braiding process.

Production process of high-pressure steel wire braided hose: mixing Liangqi glue, rubber hot mixing, inner tube pressing out, casing (iron core rubbing silicone oil and then casing), forming medium rubber, steel wire braiding (steel wire strands), outer rubber, rolling water cloth, vulcanization, water hydrolysis cloth, decoring, cutting head, pressure test, inspection, packaging, warehousing.

High-pressure steel wire braided hose production process flow chart:

The production process of high-pressure steel wire winding hose: Jingruling rubber material is matured, the inner tube is pressed out, the casing is (the iron core is rubbed with silicone oil), the window screen is wound (the window screen is wound on the casing after finishing and cutting), the upper layer of medium glue is wound on the first layer of steel wire, the upper second layer of medium glue is wound on the second layer of steel wire, the third layer of medium rubber is wound, the third layer of steel wire is wound, the fourth layer is wound, the fourth layer of steel wire is wound, the outer rubber layer is wrapped, the water cloth is rolled up, the vulcanization is water-digested, the cloth is decored, the water pressure is pressed, the appearance and size inspection is packed and put into storage.

The basic processes of hose production are rubber compound processing, cord and canvas processing, hose forming, vulcanization, etc. Hoses with different structures and different skeletons have different processing methods and hose forming equipment for the skeleton layer.

Since the hose does not contain a skeleton layer, you only need to use a press machine to press out the hose. Cloth hoses need to be formed by wrapping the adhesive tape on the inner adhesive layer; When forming the suction hose, it is necessary to wrap the metal spiral wire first and then wrap the inner glue; Weaving and winding hoses require the use of a special fabric braiding machine or winding machine; Knitting hoses require the use of knitting machines, etc.

Hose forming methods are mainly divided into coreless method and coreed method (including soft core method and hard core method) depending on whether the core is used or not. The hose is formed without a core, and the equipment is an extrusion molding machine (usually a screw extruder) that molds the skeleton layer and the outer rubber layer directly on the inner hose that is pressed out.

The rubber material is stirred, mixed, plasticized and pressed in the barrel by the placement of the extrusion screw, and then moves to the direction of the machine head, and finally extrudes the product of a certain shape from the mouth shape, the screw extruder is divided into two kinds of hot feeding and cold feeding, the former is fed into the strip material preheated by the open rubber mixer, and the latter is fed with the rubber material that has not been hot-tempered. In order to ensure that the hose is under pressure during the vulcanization process, the hose is wrapped with a water cloth (a water-soaked wet cloth roll about 10 cm wide), rope or lead after molding, and then vulcanized.

Vulcanization can be done by direct steam heating of the vulcanization tank or continuous vulcanization. Staple fiber hose is directly added to the rubber compound, and then pressed out to form, its production process is simple, it will gradually replace knitted hose and cloth hose. Modern hose production processes tend to be highly continuous and automated.

The use of thermoplastic rubber or plastic eliminates the need for vulcanization and greatly simplifies the production process.