CN102705557A

CN102705557A - Dual-clutch valve body

Info

Publication number: CN102705557A
Application number: CN201210172563XA
Authority: CN
Inventors: 张晓�; 杜秋峰
Original assignee: TAICANG HAIJIA VEHICLE FITTINGS CO Ltd
Current assignee: TAICANG HAIJIA VEHICLE FITTINGS CO Ltd
Priority date: 2012-05-30
Filing date: 2012-05-30
Publication date: 2012-10-03

Abstract

The invention discloses a dual-clutch valve body, which comprises a valve body, an accumulator support and an actuator valve body, wherein the accumulator support is arranged at the side lower part of the valve body, and the actuator valve body is arranged below the valve body. The dual-clutch valve body disclosed by the invention is produced by using a modern simulation method (mold flow analysis), the development cost is greatly reduced, the product qualification rate is high, the void fraction is superior to the ordinary process design, and the product filling process is stable. The quality is increased, and additionally, the service life of a mold is greatly prolonged.

Description

A kind of double clutch valve body

Technical field

The present invention relates to casting field, relate in particular to a kind of double clutch valve body.

Background technique

The double clutch valve body: this project is state-of-the-art in the world now AT double-clutch automatic speed-change case critical component, and this is designed to energy saving and environment friendly, comparable ordinary construction fuel-economizing 10%.Product is a thin-walled, and structure is complex parts very, and mould adopts a mould one chamber, four loose core the design and core elongated yielding.Processing precision of products requires high, as: degree of finish requires to be Ra0.4 in the axis hole; Hole machining accuracy Φ 10H6; Cylindricity is 0; Leaking hunting, it is high to require: change part and divide 9 chambers in 12 road binders roads altogether, need leak hunting amount of leakage permitted value: less than 2CC/min separately to each chamber.

This type of foundry goods is for develop research for the first time at home, and this product is developed abroad and all got nowhere before, the subject matter point: 1. the product internal soundness does not pass a test, and major defect is the product internal porosity, the gas leakage of product oil duct; 2. product axis hole precision Ra0.4 can not guarantee.

Summary of the invention

In order to overcome above-mentioned deficiency, technical problem to be solved provides a kind of double clutch valve body just in the present invention, and the production of this valve body has greatly reduced development cost to be automated as the basis, and product percent of pass is high.

For solving the problems of the technologies described above, the technological scheme that the present invention adopted is a kind of double clutch valve body, comprises valve body, accumulator support and actuator's valve body, and the side-lower that is set up in valve body is propped up in said accumulation of energy, and said actuator valve body is located at the below of valve body.

The production method of this double clutch valve body may further comprise the steps:

(1) batching, each material is following by weight percentage: silicon Si:8.0-11.0%; Iron Fe :≤1.3%; Copper Cu:2.0-4.0 %; Manganese Mn :≤0.55 %; Magnesium Mg:0.05-0.55%; Zinc Zn :≤1.2 %; Titanium Ti :≤0.25 %; Nickel :≤0.55 %; Tin Sn :≤0.25 %; Plumbous Pb :≤0.35 %; Chromium Cr :≤0.15 % surplus is aluminium AL; Tensile strength>=240Mpa, yield strength>=140Mpa, specific elongation minimum≤1%

(2) adjust cooling water pressure to 2-6Mpa, and hydraulic oil pipe pressure is connected the mould automatic temp controller to 6-12Mpa;

(3) with more than the smelting furnace heat temperature raising to 600 ℃; In burner hearth, add material described in the step (1); Continue heating, when treating that material is warming up to 720 ℃ ± 10 ℃, the adding consumption is that the nontoxic refine agent of magnificent treasure powdery of material 0.1%～0.8% carries out refining; With bell jar refine agent is pressed into and carries out circumference in the middle of the material liquid and stirred 5～15 minutes, using purity of argon is that 99.99% argon gas carries out degas operation and skims after 3～15 minutes and prepared die casting in static 10～15 minutes;

(4) mould with a mould one chamber is fixed on the active and inactive mold plate of die casting machine, with mould and die preheating to 160～220 ℃, in mold cavity, evenly sprays one deck water based paint, and the type thickness of being coated with is 0.005～0.008mm, and heating also keeps die temperature to 200～300 ℃;

Mould uses main points: this mould has 5 loose core of oil cylinder, it should be noted that mold insert and looses core more tinyly, (the thinnest is about 2 millimeters), will note not bumping against thin fuse during pickup.Select the BD-900V4-N die casting machine that is complementary with mould for use.Equipment interface is of a size of 200 * 25, and pressing the chamber diameter is 80mm.Connect water pipe, oil pipe.Cylinder connector is of a size of external thread wire 1/2, and the total joint external diameter of water pipe is 26, and note catchmenting seat and leather hose color (green is advanced, and redness goes out) divide flow cone, sprue bush water pipe to connect separately, and external diameter is 8.5.Connect super cooling unit (being provided with 2 groups of cooling circuits altogether), open each position switch;

(5) adjustment auto spraying equipment makes the spraying path can cover mold cavity comprehensively, and adjusting the fuse position spraying waiting time simultaneously is 3s;

(6) material hydraulic pressure is gone in the mould, carry out die casting, make the double clutch valve body; Die-casting technological parameter is that system pressure is 12～15MPa; Pressurization time is 2～10s, and gassing time is 3～5s, and cast temperature is 650～700 ℃; High speed position die casting speed is less than 5m/s, and the foundry goods mould remaining time is set at 20～30s.

Technological points: prevent deformation control method: 1. adopt small-sized core high pressure chiller plant that the little core of mould is carried out temperature control, prevent product distortion and crack due to thermal stress that mould high temperature causes; 2. core adopts the formula structural design of inserting, and solves the elongated yielding situation of loosing core; 4.ABB the robot automatic part picking prevents the distortion that the people causes for the pickup force unbalance.

Product through cleaning, cut edge, change over to after the flaw detection operation machining: the processing key size Control as: degree of finish requires to be Ra0.4 in the axis hole; Hole machining accuracy Φ 10H6; Cylindricity is 0; 1. machining center adopts center water outlet processing technology 2. to adopt import carbide tool 3. coaxalitys to require the high clamping that uses, profile cutter processing.

Beneficial effect: production of the present invention has greatly reduced development cost through modernized simulation means (mold flow analysis), and product percent of pass is high; Voids is superior to the common process design; The product cavity filling process is stable, has not only improved quality, the life-span of improving mould to a great extent simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, present embodiment is being to implement under the prerequisite with technological scheme of the present invention, should understand these embodiments only be used to the present invention is described and be not used in the restriction scope of the present invention.

A kind of double clutch valve body, as shown in Figure 1, comprise valve body 1, accumulator support 2 and actuator's valve body 3, wherein accumulation of energy support 2 is located at the side-lower of valve body 1, and actuator's valve body 3 is located at the below of valve body 1.

Claims

1. double clutch valve body; It is characterized in that: comprise valve body (1), accumulator support (2) and actuator's valve body (3); Said accumulation of energy support (2) is located at the side-lower of valve body (1), and said actuator valve body (3) is located at the below of valve body (1).